{"id":"CVE-2026-44011","state":"PUBLISHED","title":"Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior","description":"Craft CMS is a content management system (CMS). From 4.0.0 to before 4.17.12 and 5.9.18, Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. The request-controlled condition field layouts data is converted into a live FieldLayout object without a Component::cleanseConfig() boundary. Because Craft configures models before parent::__construct(), attacker-controlled special config keys can take effect during object creation, and FieldLayout initialization then triggers a same-request event. This vulnerability is fixed in 4.17.12 and 5.9.18.","publishedAt":"2026-05-12T20:25:08.183Z","updatedAt":"2026-05-13T15:37:25.178Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["craftcms cms"],"affected":[{"vendor":"craftcms","product":"cms","versions":[{"version":">= 4.0.0, < 4.17.12","status":"affected"},{"version":">= 5.0.0, < 5.9.18","status":"affected"}]}],"references":["https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw","https://github.com/craftcms/cms/commit/ab85ca7f5f926994f723f60584054a1f4c4c5de3"],"weaknesses":["CWE-479"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44011.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44011","state":"PUBLISHED","datePublished":"2026-05-12T20:25:08.183Z","dateUpdated":"2026-05-13T15:37:25.178Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-04T21:24:36.505Z"},"containers":{"cna":{"title":"Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior","descriptions":[{"lang":"en","value":"Craft CMS is a content management system (CMS). From 4.0.0 to before 4.17.12 and 5.9.18, Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. The request-controlled condition field layouts data is converted into a live FieldLayout object without a Component::cleanseConfig() boundary. Because Craft configures models before parent::__construct(), attacker-controlled special config keys can take effect during object creation, and FieldLayout initialization then triggers a same-request event. This vulnerability is fixed in 4.17.12 and 5.9.18."}],"affected":[{"vendor":"craftcms","product":"cms","versions":[{"version":">= 4.0.0, < 4.17.12","status":"affected"},{"version":">= 5.0.0, < 5.9.18","status":"affected"}]}],"references":[{"url":"https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw","name":"https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/craftcms/cms/commit/ab85ca7f5f926994f723f60584054a1f4c4c5de3","name":"https://github.com/craftcms/cms/commit/ab85ca7f5f926994f723f60584054a1f4c4c5de3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-479","lang":"en","description":"CWE-479: Signal Handler Use of a Non-reentrant Function","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-12T20:25:08.183Z"},"source":{"advisory":"GHSA-qrgm-p9w5-rrfw","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T15:01:05.700590Z","id":"CVE-2026-44011","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-13T15:37:25.178Z"}}]}}}