{ "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-2026-27210", "tracking": { "current_release_date": "2026-03-23T01:03:57.711543Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-27210", "initial_release_date": "2026-02-19T21:39:52.105660Z", "revision_history": [ { "date": "2026-02-19T21:39:52.105660Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-02-19T21:39:56.713863Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-02-21T05:38:33.907790Z", "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": "2026-02-21T05:38:45.247213Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-02-21T06:25:02.459815Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-02-21T06:25:11.097407Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-02-21T11:34:49.232167Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-02-21T14:14:42.330390Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-02-22T00:21:40.596501Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (7).| References created (4).| CWES updated (1)." }, { "date": "2026-02-22T00:21:42.869228Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-02-23T00:25:21.505057Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (2).| CWES updated (1)." }, { "date": "2026-02-23T22:39:45.842765Z", "number": "12", "summary": "References created (1)." }, { "date": "2026-02-23T22:39:49.507442Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-02-24T00:21:07.981658Z", "number": "14", "summary": "References created (1)." }, { "date": "2026-02-25T21:38:48.986040Z", "number": "15", "summary": "Unknown change." }, { "date": "2026-02-25T21:38:51.194835Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-03-02T15:27:11.932233Z", "number": "17", "summary": "CVSS created.| Products created (1).| Product Identifiers created (1)." }, { "date": "2026-03-02T15:27:20.640860Z", "number": "18", "summary": "NCSC Score updated." }, { "date": "2026-03-02T19:14:37.199483Z", "number": "19", "summary": "Products connected (14)." }, { "date": "2026-03-03T13:49:22.716926Z", "number": "20", "summary": "Products removed (14)." }, { "date": "2026-03-20T09:41:59.980169Z", "number": "21", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:42:03.069633Z", "number": "22", "summary": "NCSC Score updated." } ], "status": "interim", "version": "22" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/2.5.0", "product": { "name": "vers:unknown/2.5.0", "product_id": "CSAFPID-4467204" } }, { "category": "product_version_range", "name": "vers:unknown/2.5.1", "product": { "name": "vers:unknown/2.5.1", "product_id": "CSAFPID-4467205" } }, { "category": "product_version_range", "name": "vers:unknown/2.5.2", "product": { "name": "vers:unknown/2.5.2", "product_id": "CSAFPID-4467206" } }, { "category": "product_version_range", "name": "vers:unknown/2.5.3", "product": { "name": "vers:unknown/2.5.3", "product_id": "CSAFPID-4467207" } }, { "category": "product_version_range", "name": "vers:unknown/2.5.4", "product": { "name": "vers:unknown/2.5.4", "product_id": "CSAFPID-4467208" } }, { "category": "product_version_range", "name": "vers:unknown/2.5.5", "product": { "name": "vers:unknown/2.5.5", "product_id": "CSAFPID-5658317" } }, { "category": "product_version_range", "name": "vers:unknown/2.5.6", "product": { "name": "vers:unknown/2.5.6", "product_id": "CSAFPID-5658318" } }, { "category": "product_version_range", "name": "vers:unknown/>=2.5.0|<2.5.7", "product": { "name": "vers:unknown/>=2.5.0|<2.5.7", "product_id": "CSAFPID-5657158" } } ], "category": "product_name", "name": "pannellum" } ], "category": "vendor", "name": "mpetroff" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=2.5.0|<2.5.7", "product": { "name": "vers:unknown/>=2.5.0|<2.5.7", "product_id": "CSAFPID-5753499", "product_identification_helper": { "cpe": "cpe:2.3:a:pannellum:pannellum:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "pannellum" } ], "category": "vendor", "name": "pannellum" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-27210", "cwe": { "id": "CWE-79", "name": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')" }, "notes": [ { "category": "description", "text": "### Impact\nThe hot spot `attributes` configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files (bypassing the protections of the `escapeHTML` parameter). As certain events fire without any additional user interaction, visiting a standalone viewer URL that points to a malicious config file—without additional user interaction—is sufficient to trigger the vulnerability and execute arbitrary JavaScript code, which can, for example, replace the contents of the page with arbitrary content and make it appear to be hosted by the website hosting the standalone viewer HTML file.\n\n### Patches\nThis has been fixed both in v2.5.7 and in the current development branch.\n\n### Workarounds\nSetting the `Content-Security-Policy` header to `script-src-attr 'none'` will block execution of inline event handlers, mitigating this vulnerability. Don't host `pannellum.htm` on a domain that shares cookies with user authentication to mitigate XSS risk.\n\n### Acknowledgments\n\nReported both by luminary (@lumin9ry), Visvge (@Sicclord1 / @Visvge), and sutol (@0x5a6163 / @SUT0L) and by another researcher who wishes not to be named at this time.", "title": "github - https://github.com/advisories/GHSA-8423-w5wx-h2r6" }, { "category": "description", "text": "Pannellum is a lightweight, free, and open source panorama viewer for the web. In versions 3.5.0 through 2.5.6, the hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files (bypassing the protections of the escapeHTML parameter). As certain events fire without any additional user interaction, visiting a standalone viewer URL that points to a malicious config file — without additional user interaction — is sufficient to trigger the vulnerability and execute arbitrary JavaScript code, which can, for example, replace the contents of the page with arbitrary content and make it appear to be hosted by the website hosting the standalone viewer HTML file. This issue has been fixed in version 2.5.7. To workaround, setting the Content-Security-Policy header to script-src-attr 'none' will block execution of inline event handlers, mitigating this vulnerability. Don't host pannellum.htm on a domain that shares cookies with user authentication to mitigate XSS risk.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-27210" }, { "category": "description", "text": "Pannellum is a lightweight, free, and open source panorama viewer for the web. In versions 3.5.0 through 2.5.6, the hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files (bypassing the protections of the escapeHTML parameter). As certain events fire without any additional user interaction, visiting a standalone viewer URL that points to a malicious config file — without additional user interaction — is sufficient to trigger the vulnerability and execute arbitrary JavaScript code, which can, for example, replace the contents of the page with arbitrary content and make it appear to be hosted by the website hosting the standalone viewer HTML file. This issue has been fixed in version 2.5.7. To workaround, setting the Content-Security-Policy header to script-src-attr 'none' will block execution of inline event handlers, mitigating this vulnerability. Don't host pannellum.htm on a domain that shares cookies with user authentication to mitigate XSS risk.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-27210" }, { "category": "description", "text": "Pannellum is a lightweight, free, and open source panorama viewer for the web. In versions 3.5.0 through 2.5.6, the hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files (bypassing the protections of the escapeHTML parameter). As certain events fire without any additional user interaction, visiting a standalone viewer URL that points to a malicious config file — without additional user interaction — is sufficient to trigger the vulnerability and execute arbitrary JavaScript code, which can, for example, replace the contents of the page with arbitrary content and make it appear to be hosted by the website hosting the standalone viewer HTML file. This issue has been fixed in version 2.5.7. To workaround, setting the Content-Security-Policy header to script-src-attr 'none' will block execution of inline event handlers, mitigating this vulnerability. Don't host pannellum.htm on a domain that shares cookies with user authentication to mitigate XSS risk.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27210.json?alt=media" }, { "category": "description", "text": "### Impact\nThe hot spot `attributes` configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files (bypassing the protections of the `escapeHTML` parameter). As certain events fire without any additional user interaction, visiting a standalone viewer URL that points to a malicious config file—without additional user interaction—is sufficient to trigger the vulnerability and execute arbitrary JavaScript code, which can, for example, replace the contents of the page with arbitrary content and make it appear to be hosted by the website hosting the standalone viewer HTML file.\n\n### Patches\nThis has been fixed both in v2.5.7 and in the current development branch.\n\n### Workarounds\nSetting the `Content-Security-Policy` header to `script-src-attr 'none'` will block execution of inline event handlers, mitigating this vulnerability. Don't host `pannellum.htm` on a domain that shares cookies with user authentication to mitigate XSS risk.\n\n### Acknowledgments\n\nReported both by luminary (@lumin9ry), Visvge (@Sicclord1 / @Visvge), and sutol (@0x5a6163 / @SUT0L) and by another researcher who wishes not to be named at this time.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-8423-w5wx-h2r6.json?alt=media" }, { "category": "other", "text": "0.00093", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N", "title": "CVSSV4" }, { "category": "other", "text": "5.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent EPSS score, Is related to CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5657158", "CSAFPID-4467204", "CSAFPID-4467205", "CSAFPID-4467206", "CSAFPID-4467207", "CSAFPID-4467208", "CSAFPID-5658317", "CSAFPID-5658318", "CSAFPID-5753499" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-8423-w5wx-h2r6" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-8423-w5wx-h2r6" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-27210" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/27xxx/CVE-2026-27210.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27210" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-27210" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-27210" }, { "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-2026-27210.json?alt=media" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-8423-w5wx-h2r6.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; github; nvd; osv", "url": "https://github.com/mpetroff/pannellum/security/advisories/GHSA-8423-w5wx-h2r6" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/mpetroff/pannellum/commit/9391ef8da6a6a98c6a9f8c97f101adb900523681" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-8423-w5wx-h2r6" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27210.json" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27210" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-4467204", "CSAFPID-4467205", "CSAFPID-4467206", "CSAFPID-4467207", "CSAFPID-4467208", "CSAFPID-5657158", "CSAFPID-5658317", "CSAFPID-5658318", "CSAFPID-5753499" ] } ], "title": "CVE-2026-27210" } ] }