{"schema":"threatline.record/2","record":{"id":"CVE-2026-109308","aliases":["GHSA-5m2g-hhqr-84pc"],"summary":"Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 RCE via actionCacheUpdates Behavior Injection","details":"Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request parameter in AppController::actionCacheUpdates to UpdatesModel without Component::cleanseConfig(), allowing behavior and event-handler injection. Authenticated control panel users with the performUpdates permission or Updates-utility access can supply 'as' or 'on' keys, such as an AttributeTypecastBehavior gadget, to execute arbitrary code.","categories":["Unclassified"],"product":"cms","vendor":"craftcms","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109308","source_modified_at":"2026-10-13T15:47:12.028Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"cms","vendor":"craftcms","versions":[{"version":"4.0.0","status":"affected","versionType":"semver","lessThan":"4.18.7"},{"version":"4.18.7","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109308","source_modified_at":"2026-10-13T15:47:12.028Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"cms","vendor":"craftcms","versions":[{"version":"5.0.0","status":"affected","versionType":"semver","lessThan":"5.10.14"},{"version":"5.10.14","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109308","source_modified_at":"2026-10-13T15:47:12.028Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"cms","ecosystem":null},"version":"4.18.7","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109308","source_modified_at":"2026-10-13T15:47:12.028Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"cms","ecosystem":null},"version":"5.10.14","basis":"first unaffected version stated in the CVE record"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.0049,"percentile":0.41243,"score_date":"2026-10-23"},"published_at":"2026-10-12T16:05:04.666Z","modified_at":"2026-10-13T15:47:12.028Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109308","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T15:47:12.028Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109308","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/craftcms/cms/security/advisories/GHSA-5m2g-hhqr-84pc","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/craft-cms-4.0.0-before-4.18.7-and-5.0.0-before-5.10.14-rce-via-actioncacheupdates-behavior-injection","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-13T15:46:56.285080Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T15:47:12.028Z","content_hash":"3e08be4af9901caa0bbfdbdee64bd8d69cd4dc1bccae2802a6eb56b5677a97cf"}}