CVE-2026-125339

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-125339", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-09T21:22:55.599Z", "datePublished": "2026-11-10T20:06:13.941Z", "dateUpdated": "2026-11-12T18:02:03.356Z"}, "containers": {"cna": {"title": "Winter CMS: CSRF through AJAX handler names reachable as backend page actions", "problemTypes": [{"descriptions": [{"cweId": "CWE-352", "lang": "en", "description": "CWE-352: Cross-Site Request Forgery", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/wintercms/winter/security/advisories/GHSA-p2ch-c2c3-4xm5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/wintercms/winter/security/advisories/GHSA-p2ch-c2c3-4xm5"}, {"name": "https://github.com/wintercms/winter/commit/353b23804dee2acf49fca996c72637040446824f", "tags": ["x_refsource_MISC"], "url": "https://github.com/wintercms/winter/commit/353b23804dee2acf49fca996c72637040446824f"}, {"name": "https://github.com/wintercms/winter/releases/tag/v1.2.14", "tags": ["x_refsource_MISC"], "url": "https://github.com/wintercms/winter/releases/tag/v1.2.14"}], "affected": [{"vendor": "wintercms", "product": "winter", "versions": [{"version": ">= 1.0.319, < 1.2.14", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-10T20:06:13.941Z"}, "descriptions": [{"lang": "en", "value": "Winter CMS is a content management system built on the Laravel PHP framework. From 1.0.319 until 1.2.14, Backend\\Classes\\Controller::actionExists() accepts public handler-shaped methods as page actions, so a top-level GET request can invoke state-changing backend AJAX handlers without a CSRF token. Because backend routes use Route::any, CSRF validation skips GET, and the default SameSite=Lax session cookie is sent on cross-site navigation, an unauthenticated attacker can induce an authorized backend user to follow a link such as /backend/system/eventlogs/index_onEmptyLog. Affected handlers in the backend, CMS, and system modules can truncate logs, reset settings, alter backend user state, or delete CMS templates, while URL path segments can select a target record. This issue is fixed in version 1.2.14."}], "source": {"advisory": "GHSA-p2ch-c2c3-4xm5", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-12T16:26:18.986835Z", "id": "CVE-2026-125339", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-12T18:02:03.356Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "winter", "vendor": "wintercms", "versions": [{"status": "affected", "version": ">= 1.0.319, < 1.2.14"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Winter CMS is a content management system built on the Laravel PHP framework. From 1.0.319 until 1.2.14, Backend\\Classes\\Controller::actionExists() accepts public handler-shaped methods as page actions, so a top-level GET request can invoke state-changing backend AJAX handlers without a CSRF token. Because backend routes use Route::any, CSRF validation skips GET, and the default SameSite=Lax session cookie is sent on cross-site navigation, an unauthenticated attacker can induce an authorized backend user to follow a link such as /backend/system/eventlogs/index_onEmptyLog. Affected handlers in the backend, CMS, and system modules can truncate logs, reset settings, alter backend user state, or delete CMS templates, while URL path segments can select a target record. This issue is fixed in version 1.2.14."}], "id": "CVE-2026-125339", "lastModified": "2026-11-12T22:18:51.470", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-125339", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-12T16:26:18.986835Z", "version": "2.0.3"}}]}, "published": "2026-11-10T20:19:08.410", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/wintercms/winter/commit/353b23804dee2acf49fca996c72637040446824f"}, {"source": "security-advisories@github.com", "url": "https://github.com/wintercms/winter/releases/tag/v1.2.14"}, {"source": "security-advisories@github.com", "url": "https://github.com/wintercms/winter/security/advisories/GHSA-p2ch-c2c3-4xm5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.0.319,1.2.14)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "winter", "source": "cna", "vendor": "wintercms"}, "product": "winter", "vendor": "wintercms"}], "created": "2026-11-12T00:15:09.850450+00:00", "updated": "2026-11-12T22:00:09.546443+00:00", "vendors": ["wintercms", "wintercms$PRODUCT$winter"]}