{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-27458", "tracking": { "current_release_date": "2026-03-23T02:57:04.689924Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-27458", "initial_release_date": "2026-02-21T07:24:48.011754Z", "revision_history": [ { "date": "2026-02-21T07:24:48.011754Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-02-21T07:24:50.079343Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-02-21T07:38:30.158381Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-02-21T07:38:37.085981Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-02-21T11:34:49.232167Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-02-21T14:14:40.507694Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-02-22T00:21:05.449671Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (106).| Products created (3).| References created (4).| CWES updated (1)." }, { "date": "2026-02-22T00:21:20.607949Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-02-24T15:26:40.298953Z", "number": "9", "summary": "CVSS created.| Products created (1).| Product Identifiers created (1).| Exploits created (1)." }, { "date": "2026-02-24T15:26:42.429653Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-02-24T19:52:19.330343Z", "number": "11", "summary": "Unknown change." }, { "date": "2026-02-24T19:52:21.614233Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:41:03.088968Z", "number": "13", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:41:07.150882Z", "number": "14", "summary": "NCSC Score updated." } ], "status": "interim", "version": "14" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2.4.3", "product": { "name": "vers:unknown/<2.4.3", "product_id": "CSAFPID-5657729" } } ], "category": "product_name", "name": "LinkAce" } ], "category": "vendor", "name": "Kovah" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/v0.0.1", "product": { "name": "vers:unknown/v0.0.1", "product_id": "CSAFPID-3656564" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.10", "product": { "name": "vers:unknown/v0.0.10", "product_id": "CSAFPID-3656565" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.11", "product": { "name": "vers:unknown/v0.0.11", "product_id": "CSAFPID-3656566" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.12", "product": { "name": "vers:unknown/v0.0.12", "product_id": "CSAFPID-3656567" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.13", "product": { "name": "vers:unknown/v0.0.13", "product_id": "CSAFPID-3656568" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.14", "product": { "name": "vers:unknown/v0.0.14", "product_id": "CSAFPID-3656569" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.15", "product": { "name": "vers:unknown/v0.0.15", "product_id": "CSAFPID-3656570" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.16", "product": { "name": "vers:unknown/v0.0.16", "product_id": "CSAFPID-3656571" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.17", "product": { "name": "vers:unknown/v0.0.17", "product_id": "CSAFPID-3656572" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.18", "product": { "name": "vers:unknown/v0.0.18", "product_id": "CSAFPID-3656573" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.19", "product": { "name": "vers:unknown/v0.0.19", "product_id": "CSAFPID-3656574" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.2", "product": { "name": "vers:unknown/v0.0.2", "product_id": "CSAFPID-3656575" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.20", "product": { "name": "vers:unknown/v0.0.20", "product_id": "CSAFPID-3656576" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.21", "product": { "name": "vers:unknown/v0.0.21", "product_id": "CSAFPID-3656577" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.22", "product": { "name": "vers:unknown/v0.0.22", "product_id": "CSAFPID-3656578" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.23", "product": { "name": "vers:unknown/v0.0.23", "product_id": "CSAFPID-3656579" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.24", "product": { "name": "vers:unknown/v0.0.24", "product_id": "CSAFPID-3656580" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.25", "product": { "name": "vers:unknown/v0.0.25", "product_id": "CSAFPID-3656581" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.26", "product": { "name": "vers:unknown/v0.0.26", "product_id": "CSAFPID-3656582" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.27", "product": { "name": "vers:unknown/v0.0.27", "product_id": "CSAFPID-3656583" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.28", "product": { "name": "vers:unknown/v0.0.28", "product_id": "CSAFPID-3656584" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.29", "product": { "name": "vers:unknown/v0.0.29", "product_id": "CSAFPID-3656585" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.3", "product": { "name": "vers:unknown/v0.0.3", "product_id": "CSAFPID-3656586" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.30", "product": { "name": "vers:unknown/v0.0.30", "product_id": "CSAFPID-3656587" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.31", "product": { "name": "vers:unknown/v0.0.31", "product_id": "CSAFPID-3656588" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.32", "product": { "name": "vers:unknown/v0.0.32", "product_id": "CSAFPID-3656589" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.33", "product": { "name": "vers:unknown/v0.0.33", "product_id": "CSAFPID-3656590" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.34", "product": { "name": "vers:unknown/v0.0.34", "product_id": "CSAFPID-3656591" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.35", "product": { "name": "vers:unknown/v0.0.35", "product_id": "CSAFPID-3656592" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.36", "product": { "name": "vers:unknown/v0.0.36", "product_id": "CSAFPID-3656593" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.37", "product": { "name": "vers:unknown/v0.0.37", "product_id": "CSAFPID-3656594" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.38", "product": { "name": "vers:unknown/v0.0.38", "product_id": "CSAFPID-3656595" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.39", "product": { "name": "vers:unknown/v0.0.39", "product_id": "CSAFPID-3656596" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.4", "product": { "name": "vers:unknown/v0.0.4", "product_id": "CSAFPID-3656597" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.40", "product": { "name": "vers:unknown/v0.0.40", "product_id": "CSAFPID-3656598" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.41", "product": { "name": "vers:unknown/v0.0.41", "product_id": "CSAFPID-3656599" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.42", "product": { "name": "vers:unknown/v0.0.42", "product_id": "CSAFPID-3656600" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.43", "product": { "name": "vers:unknown/v0.0.43", "product_id": "CSAFPID-3656601" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.44", "product": { "name": "vers:unknown/v0.0.44", "product_id": "CSAFPID-3656602" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.5", "product": { "name": "vers:unknown/v0.0.5", "product_id": "CSAFPID-3656603" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.6", "product": { "name": "vers:unknown/v0.0.6", "product_id": "CSAFPID-3656604" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.7", "product": { "name": "vers:unknown/v0.0.7", "product_id": "CSAFPID-3656605" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.8", "product": { "name": "vers:unknown/v0.0.8", "product_id": "CSAFPID-3656606" } }, { "category": "product_version_range", "name": "vers:unknown/v0.0.9", "product": { "name": "vers:unknown/v0.0.9", "product_id": "CSAFPID-3656607" } }, { "category": "product_version_range", "name": "vers:unknown/v1.0.0", "product": { "name": "vers:unknown/v1.0.0", "product_id": "CSAFPID-3656608" } }, { "category": "product_version_range", "name": "vers:unknown/v1.0.1", "product": { "name": "vers:unknown/v1.0.1", "product_id": "CSAFPID-3656609" } }, { "category": "product_version_range", "name": "vers:unknown/v1.1.0", "product": { "name": "vers:unknown/v1.1.0", "product_id": "CSAFPID-3656610" } }, { "category": "product_version_range", "name": "vers:unknown/v1.10.0", "product": { "name": "vers:unknown/v1.10.0", "product_id": "CSAFPID-3656611" } }, { "category": "product_version_range", "name": "vers:unknown/v1.10.1", "product": { "name": "vers:unknown/v1.10.1", "product_id": "CSAFPID-3656612" } }, { "category": "product_version_range", "name": "vers:unknown/v1.10.2", "product": { "name": "vers:unknown/v1.10.2", "product_id": "CSAFPID-3656613" } }, { "category": "product_version_range", "name": "vers:unknown/v1.10.3", "product": { "name": "vers:unknown/v1.10.3", "product_id": "CSAFPID-3656614" } }, { "category": "product_version_range", "name": "vers:unknown/v1.10.4", "product": { "name": "vers:unknown/v1.10.4", "product_id": "CSAFPID-3656615" } }, { "category": "product_version_range", "name": "vers:unknown/v1.10.5", "product": { "name": "vers:unknown/v1.10.5", "product_id": "CSAFPID-3656616" } }, { "category": "product_version_range", "name": "vers:unknown/v1.11.0", "product": { "name": "vers:unknown/v1.11.0", "product_id": "CSAFPID-3656617" } }, { "category": "product_version_range", "name": "vers:unknown/v1.11.1", "product": { "name": "vers:unknown/v1.11.1", "product_id": "CSAFPID-3656618" } }, { "category": "product_version_range", "name": "vers:unknown/v1.11.2", "product": { "name": "vers:unknown/v1.11.2", "product_id": "CSAFPID-3656619" } }, { "category": "product_version_range", "name": "vers:unknown/v1.11.3", "product": { "name": "vers:unknown/v1.11.3", "product_id": "CSAFPID-3656620" } }, { "category": "product_version_range", "name": "vers:unknown/v1.11.4", "product": { "name": "vers:unknown/v1.11.4", "product_id": "CSAFPID-3656621" } }, { "category": "product_version_range", "name": "vers:unknown/v1.12.0", "product": { "name": "vers:unknown/v1.12.0", "product_id": "CSAFPID-3656622" } }, { "category": "product_version_range", "name": "vers:unknown/v1.12.1", "product": { "name": "vers:unknown/v1.12.1", "product_id": "CSAFPID-3656623" } }, { "category": "product_version_range", "name": "vers:unknown/v1.12.2", "product": { "name": "vers:unknown/v1.12.2", "product_id": "CSAFPID-3656624" } }, { "category": "product_version_range", "name": "vers:unknown/v1.13.0", "product": { "name": "vers:unknown/v1.13.0", "product_id": "CSAFPID-3656625" } }, { "category": "product_version_range", "name": "vers:unknown/v1.14.0", "product": { "name": "vers:unknown/v1.14.0", "product_id": "CSAFPID-3656626" } }, { "category": "product_version_range", "name": "vers:unknown/v1.14.1", "product": { "name": "vers:unknown/v1.14.1", "product_id": "CSAFPID-3656627" } }, { "category": "product_version_range", "name": "vers:unknown/v1.14.2", "product": { "name": "vers:unknown/v1.14.2", "product_id": "CSAFPID-3656628" } }, { "category": "product_version_range", "name": "vers:unknown/v1.14.3", "product": { "name": "vers:unknown/v1.14.3", "product_id": "CSAFPID-3656629" } }, { "category": "product_version_range", "name": "vers:unknown/v1.15.0", "product": { "name": "vers:unknown/v1.15.0", "product_id": "CSAFPID-3656630" } }, { "category": "product_version_range", "name": "vers:unknown/v1.15.1", "product": { "name": "vers:unknown/v1.15.1", "product_id": "CSAFPID-3656631" } }, { "category": "product_version_range", "name": "vers:unknown/v1.15.2", "product": { "name": "vers:unknown/v1.15.2", "product_id": "CSAFPID-3656632" } }, { "category": "product_version_range", "name": "vers:unknown/v1.2.0", "product": { "name": "vers:unknown/v1.2.0", "product_id": "CSAFPID-3656636" } }, { "category": "product_version_range", "name": "vers:unknown/v1.2.1", "product": { "name": "vers:unknown/v1.2.1", "product_id": "CSAFPID-3656637" } }, { "category": "product_version_range", "name": "vers:unknown/v1.2.2", "product": { "name": "vers:unknown/v1.2.2", "product_id": "CSAFPID-3656638" } }, { "category": "product_version_range", "name": "vers:unknown/v1.3.0", "product": { "name": "vers:unknown/v1.3.0", "product_id": "CSAFPID-3656639" } }, { "category": "product_version_range", "name": "vers:unknown/v1.3.1", "product": { "name": "vers:unknown/v1.3.1", "product_id": "CSAFPID-3656640" } }, { "category": "product_version_range", "name": "vers:unknown/v1.4.0", "product": { "name": "vers:unknown/v1.4.0", "product_id": "CSAFPID-3656641" } }, { "category": "product_version_range", "name": "vers:unknown/v1.4.1", "product": { "name": "vers:unknown/v1.4.1", "product_id": "CSAFPID-3656642" } }, { "category": "product_version_range", "name": "vers:unknown/v1.5.0", "product": { "name": "vers:unknown/v1.5.0", "product_id": "CSAFPID-3656643" } }, { "category": "product_version_range", "name": "vers:unknown/v1.6.0", "product": { "name": "vers:unknown/v1.6.0", "product_id": "CSAFPID-3656644" } }, { "category": "product_version_range", "name": "vers:unknown/v1.6.1", "product": { "name": "vers:unknown/v1.6.1", "product_id": "CSAFPID-3656645" } }, { "category": "product_version_range", "name": "vers:unknown/v1.6.2", "product": { "name": "vers:unknown/v1.6.2", "product_id": "CSAFPID-3656646" } }, { "category": "product_version_range", "name": "vers:unknown/v1.6.3", "product": { "name": "vers:unknown/v1.6.3", "product_id": "CSAFPID-3656647" } }, { "category": "product_version_range", "name": "vers:unknown/v1.6.4", "product": { "name": "vers:unknown/v1.6.4", "product_id": "CSAFPID-3656648" } }, { "category": "product_version_range", "name": "vers:unknown/v1.7.0", "product": { "name": "vers:unknown/v1.7.0", "product_id": "CSAFPID-3656649" } }, { "category": "product_version_range", "name": "vers:unknown/v1.8.0", "product": { "name": "vers:unknown/v1.8.0", "product_id": "CSAFPID-3656650" } }, { "category": "product_version_range", "name": "vers:unknown/v1.8.1", "product": { "name": "vers:unknown/v1.8.1", "product_id": "CSAFPID-3656651" } }, { "category": "product_version_range", "name": "vers:unknown/v1.9.0", "product": { "name": "vers:unknown/v1.9.0", "product_id": "CSAFPID-3656652" } }, { "category": "product_version_range", "name": "vers:unknown/v1.9.1", "product": { "name": "vers:unknown/v1.9.1", "product_id": "CSAFPID-3656653" } }, { "category": "product_version_range", "name": "vers:unknown/v1.9.2", "product": { "name": "vers:unknown/v1.9.2", "product_id": "CSAFPID-3656654" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0", "product": { "name": "vers:unknown/v2.0.0", "product_id": "CSAFPID-3689438" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0-beta1", "product": { "name": "vers:unknown/v2.0.0-beta1", "product_id": "CSAFPID-3689439" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0-beta2", "product": { "name": "vers:unknown/v2.0.0-beta2", "product_id": "CSAFPID-3689440" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0-beta3", "product": { "name": "vers:unknown/v2.0.0-beta3", "product_id": "CSAFPID-3689441" } }, { "category": "product_version_range", "name": "vers:unknown/v2.0.0-beta4", "product": { "name": "vers:unknown/v2.0.0-beta4", "product_id": "CSAFPID-3689442" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.0", "product": { "name": "vers:unknown/v2.1.0", "product_id": "CSAFPID-3689443" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.1", "product": { "name": "vers:unknown/v2.1.1", "product_id": "CSAFPID-3689444" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.2", "product": { "name": "vers:unknown/v2.1.2", "product_id": "CSAFPID-3689445" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.3", "product": { "name": "vers:unknown/v2.1.3", "product_id": "CSAFPID-3689446" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.4", "product": { "name": "vers:unknown/v2.1.4", "product_id": "CSAFPID-3689447" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.5", "product": { "name": "vers:unknown/v2.1.5", "product_id": "CSAFPID-3689448" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.6", "product": { "name": "vers:unknown/v2.1.6", "product_id": "CSAFPID-3689449" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.7", "product": { "name": "vers:unknown/v2.1.7", "product_id": "CSAFPID-3689450" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.8", "product": { "name": "vers:unknown/v2.1.8", "product_id": "CSAFPID-3689451" } }, { "category": "product_version_range", "name": "vers:unknown/v2.1.9", "product": { "name": "vers:unknown/v2.1.9", "product_id": "CSAFPID-3691687" } }, { "category": "product_version_range", "name": "vers:unknown/v2.2.0", "product": { "name": "vers:unknown/v2.2.0", "product_id": "CSAFPID-3691688" } }, { "category": "product_version_range", "name": "vers:unknown/v2.3.0", "product": { "name": "vers:unknown/v2.3.0", "product_id": "CSAFPID-3691689" } }, { "category": "product_version_range", "name": "vers:unknown/v2.3.1", "product": { "name": "vers:unknown/v2.3.1", "product_id": "CSAFPID-5165578" } }, { "category": "product_version_range", "name": "vers:unknown/v2.4.0", "product": { "name": "vers:unknown/v2.4.0", "product_id": "CSAFPID-5661444" } }, { "category": "product_version_range", "name": "vers:unknown/v2.4.1", "product": { "name": "vers:unknown/v2.4.1", "product_id": "CSAFPID-5661445" } }, { "category": "product_version_range", "name": "vers:unknown/v2.4.2", "product": { "name": "vers:unknown/v2.4.2", "product_id": "CSAFPID-5661446" } } ], "category": "product_name", "name": "linkace" } ], "category": "vendor", "name": "kovah" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<2.4.3", "product": { "name": "vers:unknown/<2.4.3", "product_id": "CSAFPID-5687723", "product_identification_helper": { "cpe": "cpe:2.3:a:linkace:linkace:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "linkace" } ], "category": "vendor", "name": "linkace" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-27458", "cwe": { "id": "CWE-80", "name": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)" }, "notes": [ { "category": "description", "text": "LinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site Scripting vulnerability through the Atom feed endpoint for lists (/lists/feed). An authenticated user can inject a CDATA-breaking payload into a list description that escapes the XML CDATA section, injects a native SVG element into the Atom XML document, and executes arbitrary JavaScript directly in the browser when the feed URL is visited. No RSS reader or additional rendering context is required — the browser's native XML parser processes the injected SVG and fires the onload event handler. This vulnerability exists because the lists feed template outputs list descriptions using Blade's raw syntax ({!! !!}) without sanitization inside a CDATA block. The critical detail is that because the output sits inside , an attacker can inject the sequence ]]> to close the CDATA section prematurely, then inject arbitrary XML/SVG elements that the browser parses and executes natively as part of the Atom document. This issue has been fixed in version 2.4.3.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-27458" }, { "category": "description", "text": "LinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site Scripting vulnerability through the Atom feed endpoint for lists (/lists/feed). An authenticated user can inject a CDATA-breaking payload into a list description that escapes the XML CDATA section, injects a native SVG element into the Atom XML document, and executes arbitrary JavaScript directly in the browser when the feed URL is visited. No RSS reader or additional rendering context is required — the browser's native XML parser processes the injected SVG and fires the onload event handler. This vulnerability exists because the lists feed template outputs list descriptions using Blade's raw syntax ({!! !!}) without sanitization inside a CDATA block. The critical detail is that because the output sits inside , an attacker can inject the sequence ]]> to close the CDATA section prematurely, then inject arbitrary XML/SVG elements that the browser parses and executes natively as part of the Atom document. This issue has been fixed in version 2.4.3.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-27458" }, { "category": "description", "text": "LinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site Scripting vulnerability through the Atom feed endpoint for lists (/lists/feed). An authenticated user can inject a CDATA-breaking payload into a list description that escapes the XML CDATA section, injects a native SVG element into the Atom XML document, and executes arbitrary JavaScript directly in the browser when the feed URL is visited. No RSS reader or additional rendering context is required — the browser's native XML parser processes the injected SVG and fires the onload event handler. This vulnerability exists because the lists feed template outputs list descriptions using Blade's raw syntax ({!! !!}) without sanitization inside a CDATA block. The critical detail is that because the output sits inside , an attacker can inject the sequence ]]> to close the CDATA section prematurely, then inject arbitrary XML/SVG elements that the browser parses and executes natively as part of the Atom document. This issue has been fixed in version 2.4.3.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27458.json?alt=media" }, { "category": "other", "text": "0.00035", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "title": "CVSSV4" }, { "category": "other", "text": "8.7", "title": "CVSSV4 base score" }, { "category": "other", "text": "3.7", "title": "NCSC Score" }, { "category": "other", "text": "Is related to CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS))", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent EPSS score, There is exploit data available from source Nvd, Is related to (a version of) an uncommon product, Exploit code publicly available", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5657729", "CSAFPID-3656564", "CSAFPID-3656565", "CSAFPID-3656566", "CSAFPID-3656567", "CSAFPID-3656568", "CSAFPID-3656569", "CSAFPID-3656570", "CSAFPID-3656571", "CSAFPID-3656572", "CSAFPID-3656573", "CSAFPID-3656574", "CSAFPID-3656575", "CSAFPID-3656576", "CSAFPID-3656577", "CSAFPID-3656578", "CSAFPID-3656579", "CSAFPID-3656580", "CSAFPID-3656581", "CSAFPID-3656582", "CSAFPID-3656583", "CSAFPID-3656584", "CSAFPID-3656585", "CSAFPID-3656586", "CSAFPID-3656587", "CSAFPID-3656588", "CSAFPID-3656589", "CSAFPID-3656590", "CSAFPID-3656591", "CSAFPID-3656592", "CSAFPID-3656593", "CSAFPID-3656594", "CSAFPID-3656595", "CSAFPID-3656596", "CSAFPID-3656597", "CSAFPID-3656598", "CSAFPID-3656599", "CSAFPID-3656600", "CSAFPID-3656601", "CSAFPID-3656602", "CSAFPID-3656603", "CSAFPID-3656604", "CSAFPID-3656605", "CSAFPID-3656606", "CSAFPID-3656607", "CSAFPID-3656608", "CSAFPID-3656609", "CSAFPID-3656610", "CSAFPID-3656611", "CSAFPID-3656612", "CSAFPID-3656613", "CSAFPID-3656614", "CSAFPID-3656615", "CSAFPID-3656616", "CSAFPID-3656617", "CSAFPID-3656618", "CSAFPID-3656619", "CSAFPID-3656620", "CSAFPID-3656621", "CSAFPID-3656622", "CSAFPID-3656623", "CSAFPID-3656624", "CSAFPID-3656625", "CSAFPID-3656626", "CSAFPID-3656627", "CSAFPID-3656628", "CSAFPID-3656629", "CSAFPID-3656630", "CSAFPID-3656631", "CSAFPID-3656632", "CSAFPID-3656636", "CSAFPID-3656637", "CSAFPID-3656638", "CSAFPID-3656639", "CSAFPID-3656640", "CSAFPID-3656641", "CSAFPID-3656642", "CSAFPID-3656643", "CSAFPID-3656644", "CSAFPID-3656645", "CSAFPID-3656646", "CSAFPID-3656647", "CSAFPID-3656648", "CSAFPID-3656649", "CSAFPID-3656650", "CSAFPID-3656651", "CSAFPID-3656652", "CSAFPID-3656653", "CSAFPID-3656654", "CSAFPID-3689438", "CSAFPID-3689439", "CSAFPID-3689440", "CSAFPID-3689441", "CSAFPID-3689442", "CSAFPID-3689443", "CSAFPID-3689444", "CSAFPID-3689445", "CSAFPID-3689446", "CSAFPID-3689447", "CSAFPID-3689448", "CSAFPID-3689449", "CSAFPID-3689450", "CSAFPID-3689451", "CSAFPID-3691687", "CSAFPID-3691688", "CSAFPID-3691689", "CSAFPID-5165578", "CSAFPID-5661444", "CSAFPID-5661445", "CSAFPID-5661446", "CSAFPID-5687723" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27458" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-27458" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-27458" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/27xxx/CVE-2026-27458.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-27458" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27458.json?alt=media" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/Kovah/LinkAce/commit/eb5ba2abe05177ffa678baac0aa3f9c48b47d2f0" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-2r9p-95xj-p583" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27458.json" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27458" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-3656564", "CSAFPID-3656565", "CSAFPID-3656566", "CSAFPID-3656567", "CSAFPID-3656568", "CSAFPID-3656569", "CSAFPID-3656570", "CSAFPID-3656571", "CSAFPID-3656572", "CSAFPID-3656573", "CSAFPID-3656574", "CSAFPID-3656575", "CSAFPID-3656576", "CSAFPID-3656577", "CSAFPID-3656578", "CSAFPID-3656579", "CSAFPID-3656580", "CSAFPID-3656581", "CSAFPID-3656582", "CSAFPID-3656583", "CSAFPID-3656584", "CSAFPID-3656585", "CSAFPID-3656586", "CSAFPID-3656587", "CSAFPID-3656588", "CSAFPID-3656589", "CSAFPID-3656590", "CSAFPID-3656591", "CSAFPID-3656592", "CSAFPID-3656593", "CSAFPID-3656594", "CSAFPID-3656595", "CSAFPID-3656596", "CSAFPID-3656597", "CSAFPID-3656598", "CSAFPID-3656599", "CSAFPID-3656600", "CSAFPID-3656601", "CSAFPID-3656602", "CSAFPID-3656603", "CSAFPID-3656604", "CSAFPID-3656605", "CSAFPID-3656606", "CSAFPID-3656607", "CSAFPID-3656608", "CSAFPID-3656609", "CSAFPID-3656610", "CSAFPID-3656611", "CSAFPID-3656612", "CSAFPID-3656613", "CSAFPID-3656614", "CSAFPID-3656615", "CSAFPID-3656616", "CSAFPID-3656617", "CSAFPID-3656618", "CSAFPID-3656619", "CSAFPID-3656620", "CSAFPID-3656621", "CSAFPID-3656622", "CSAFPID-3656623", "CSAFPID-3656624", "CSAFPID-3656625", "CSAFPID-3656626", "CSAFPID-3656627", "CSAFPID-3656628", "CSAFPID-3656629", "CSAFPID-3656630", "CSAFPID-3656631", "CSAFPID-3656632", "CSAFPID-3656636", "CSAFPID-3656637", "CSAFPID-3656638", "CSAFPID-3656639", "CSAFPID-3656640", "CSAFPID-3656641", "CSAFPID-3656642", "CSAFPID-3656643", "CSAFPID-3656644", "CSAFPID-3656645", "CSAFPID-3656646", "CSAFPID-3656647", "CSAFPID-3656648", "CSAFPID-3656649", "CSAFPID-3656650", "CSAFPID-3656651", "CSAFPID-3656652", "CSAFPID-3656653", "CSAFPID-3656654", "CSAFPID-3689438", "CSAFPID-3689439", "CSAFPID-3689440", "CSAFPID-3689441", "CSAFPID-3689442", "CSAFPID-3689443", "CSAFPID-3689444", "CSAFPID-3689445", "CSAFPID-3689446", "CSAFPID-3689447", "CSAFPID-3689448", "CSAFPID-3689449", "CSAFPID-3689450", "CSAFPID-3689451", "CSAFPID-3691687", "CSAFPID-3691688", "CSAFPID-3691689", "CSAFPID-5165578", "CSAFPID-5657729", "CSAFPID-5661444", "CSAFPID-5661445", "CSAFPID-5661446", "CSAFPID-5687723" ] } ], "title": "CVE-2026-27458" } ] }