{ "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-2026-31857", "tracking": { "current_release_date": "2026-03-23T11:02:45.609796Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-31857", "initial_release_date": "2026-03-11T15:52:36.336768Z", "revision_history": [ { "date": "2026-03-11T15:52:36.336768Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-11T15:52:41.964218Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-11T17:38:44.525618Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (2).| References created (2).| CWES updated (1)." }, { "date": "2026-03-11T17:38:46.123940Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-11T18:26:42.580835Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-11T18:26:49.312146Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-11T21:56:45.181372Z", "number": "7", "summary": "References created (1)." }, { "date": "2026-03-12T14:39:09.015509Z", "number": "8", "summary": "Unknown change." }, { "date": "2026-03-12T14:57:36.472194Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-12T14:57:38.346364Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-17T14:27:01.302349Z", "number": "11", "summary": "CVSS created.| Products created (2).| Product Identifiers created (12).| Products connected (10)." }, { "date": "2026-03-17T14:27:04.163260Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:30:42.001427Z", "number": "13", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-03-19T15:30:44.276692Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:32:38.734343Z", "number": "15", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:32:41.999222Z", "number": "16", "summary": "NCSC Score updated." } ], "status": "interim", "version": "16" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/4.0.0", "product": { "name": "vers:unknown/4.0.0", "product_id": "CSAFPID-909152", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-beta1", "product": { "name": "vers:unknown/4.0.0-beta1", "product_id": "CSAFPID-5379026", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:beta1:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-beta2", "product": { "name": "vers:unknown/4.0.0-beta2", "product_id": "CSAFPID-5379027", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:beta2:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-beta3", "product": { "name": "vers:unknown/4.0.0-beta3", "product_id": "CSAFPID-5379028", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:beta3:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-beta4", "product": { "name": "vers:unknown/4.0.0-beta4", "product_id": "CSAFPID-5379029", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:beta4:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-rc1", "product": { "name": "vers:unknown/4.0.0-rc1", "product_id": "CSAFPID-5379030", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-rc2", "product": { "name": "vers:unknown/4.0.0-rc2", "product_id": "CSAFPID-5379031", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/4.0.0-rc3", "product": { "name": "vers:unknown/4.0.0-rc3", "product_id": "CSAFPID-5379032", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/5.0.0", "product": { "name": "vers:unknown/5.0.0", "product_id": "CSAFPID-1114119", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/5.0.0-rc1", "product": { "name": "vers:unknown/5.0.0-rc1", "product_id": "CSAFPID-5379068", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=4.0.0.1|<4.17.4", "product": { "name": "vers:unknown/>=4.0.0.1|<4.17.4", "product_id": "CSAFPID-5835900", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=5.0.1|<5.9.9", "product": { "name": "vers:unknown/>=5.0.1|<5.9.9", "product_id": "CSAFPID-5835901", "product_identification_helper": { "cpe": "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Craft Cms" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=4.0.0-beta.1|<4.17.4", "product": { "name": "vers:unknown/>=4.0.0-beta.1|<4.17.4", "product_id": "CSAFPID-5796648" } }, { "category": "product_version_range", "name": "vers:unknown/>=5.0.0-rc1|<5.9.9", "product": { "name": "vers:unknown/>=5.0.0-rc1|<5.9.9", "product_id": "CSAFPID-5796647" } } ], "category": "product_name", "name": "cms" } ], "category": "vendor", "name": "Craftcms" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-31857", "cwe": { "id": "CWE-94", "name": "Improper Control of Generation of Code ('Code Injection')" }, "notes": [ { "category": "description", "text": "A Remote Code Execution vulnerability exists in the Craft CMS 5 conditions system.\n\nThe `BaseElementSelectConditionRule::getElementIds()` method passes user-controlled string input\nthrough `renderObjectTemplate()` -- an unsandboxed Twig rendering function with escaping disabled.\n\nAny authenticated Control Panel user (including non-admin roles such as Author or Editor) can achieve full\nRCE by sending a crafted condition rule via standard element listing endpoints.\n\nThis vulnerability requires no admin privileges, no special permissions beyond basic control panel access, and\nbypasses all production hardening settings (allowAdminChanges: false, devMode: false,\nenableTwigSandbox: true).\n\nUsers should update to the patched 5.99 release to mitigate the issue.", "title": "github - https://github.com/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "description", "text": "Craft is a content management system (CMS). Prior to 5.9.9 and 4.17.4, a Remote Code Execution vulnerability exists in the Craft CMS 5 conditions system. The BaseElementSelectConditionRule::getElementIds() method passes user-controlled string input through renderObjectTemplate() -- an unsandboxed Twig rendering function with escaping disabled. Any authenticated Control Panel user (including non-admin roles such as Author or Editor) can achieve full RCE by sending a crafted condition rule via standard element listing endpoints. This vulnerability requires no admin privileges, no special permissions beyond basic control panel access, and bypasses all production hardening settings (allowAdminChanges: false, devMode: false, enableTwigSandbox: true). Users should update to the patched 5.9.9 or 4.17.4 release to mitigate the issue.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-31857" }, { "category": "description", "text": "Craft is a content management system (CMS). Prior to 5.9.9 and 4.17.4, a Remote Code Execution vulnerability exists in the Craft CMS 5 conditions system. The BaseElementSelectConditionRule::getElementIds() method passes user-controlled string input through renderObjectTemplate() -- an unsandboxed Twig rendering function with escaping disabled. Any authenticated Control Panel user (including non-admin roles such as Author or Editor) can achieve full RCE by sending a crafted condition rule via standard element listing endpoints. This vulnerability requires no admin privileges, no special permissions beyond basic control panel access, and bypasses all production hardening settings (allowAdminChanges: false, devMode: false, enableTwigSandbox: true). Users should update to the patched 5.9.9 or 4.17.4 release to mitigate the issue.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-31857" }, { "category": "description", "text": "A Remote Code Execution vulnerability exists in the Craft CMS 5 conditions system.\n\nThe `BaseElementSelectConditionRule::getElementIds()` method passes user-controlled string input\nthrough `renderObjectTemplate()` -- an unsandboxed Twig rendering function with escaping disabled.\n\nAny authenticated Control Panel user (including non-admin roles such as Author or Editor) can achieve full\nRCE by sending a crafted condition rule via standard element listing endpoints.\n\nThis vulnerability requires no admin privileges, no special permissions beyond basic control panel access, and\nbypasses all production hardening settings (allowAdminChanges: false, devMode: false,\nenableTwigSandbox: true).\n\nUsers should update to the patched 5.99 release to mitigate the issue.", "title": "github - https://api.github.com/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "other", "text": "0.00103", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U", "title": "CVSSV4" }, { "category": "other", "text": "8.1", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.4", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5796647", "CSAFPID-5796648", "CSAFPID-909152", "CSAFPID-1114119", "CSAFPID-5379026", "CSAFPID-5379027", "CSAFPID-5379028", "CSAFPID-5379029", "CSAFPID-5379030", "CSAFPID-5379031", "CSAFPID-5379032", "CSAFPID-5379068", "CSAFPID-5835900", "CSAFPID-5835901" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-31857" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31857.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31857" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31857" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31857" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/craftcms/cms/security/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/craftcms/cms/commit/8d4903647dcfd31b8d40ed027e27082013347a80" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-fp5j-j7j4-mcxc" }, { "category": "external", "summary": "Reference - github", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31857" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1114119", "CSAFPID-5379026", "CSAFPID-5379027", "CSAFPID-5379028", "CSAFPID-5379029", "CSAFPID-5379030", "CSAFPID-5379031", "CSAFPID-5379032", "CSAFPID-5379068", "CSAFPID-5796647", "CSAFPID-5796648", "CSAFPID-5835900", "CSAFPID-5835901", "CSAFPID-909152" ] } ], "title": "CVE-2026-31857" } ] }