{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-50279","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-04T16:26:05.985Z","datePublished":"2026-07-01T23:31:31.101Z","dateUpdated":"2026-07-02T12:27:42.242Z"},"containers":{"cna":{"title":"Craft CMS: Authorship spoofing in `entries/save-entry` via pre-check/post-mutation authorization gap","problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/craftcms/cms/security/advisories/GHSA-qq2c-2q8j-jh27","tags":["x_refsource_CONFIRM"],"url":"https://github.com/craftcms/cms/security/advisories/GHSA-qq2c-2q8j-jh27"},{"name":"https://github.com/craftcms/cms/commit/9cc493be8b414d7116c7f2bc2a6d0926e73f1248","tags":["x_refsource_MISC"],"url":"https://github.com/craftcms/cms/commit/9cc493be8b414d7116c7f2bc2a6d0926e73f1248"}],"affected":[{"vendor":"craftcms","product":"cms","versions":[{"version":">= 5.0.0-RC1, < 5.9.21","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-01T23:31:31.101Z"},"descriptions":[{"lang":"en","value":"Craft CMS is a content management system (CMS). IN versions 5.0.0-RC1 and above prior to 5.9.21, theEntriesController::actionSaveEntry() performs entry-edit permission checks before request-controlled author changes are applied to the model, allowing for authorship spoofing. The subsequent author mutation path accepts attacker-supplied authors / author parameters and allows the change when the current user is one of the old authors. Because the controller does not re-run authorization after mutating the author list, a low-privileged user can reassign an entry’s authorship to another user without holding the dedicated peer-author-change permission. This issue has been fixed in version 5.9.21."}],"source":{"advisory":"GHSA-qq2c-2q8j-jh27","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/craftcms/cms/security/advisories/GHSA-qq2c-2q8j-jh27","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-02T12:27:22.397596Z","id":"CVE-2026-50279","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-02T12:27:42.242Z"}}]}}