{"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": "2026-07-01T23:31:31.101Z"}, "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\u2019s 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"}}}}

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