{"vulnerability": "cve-2026-107851", "sightings": [{"uuid": "88f24d65-8a77-4f91-a4e8-1fbb8bd697f8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-107851", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117412875380360975", "content": "CVE-2026-107851 Contao: Improper access control in the table access voter Contao is an Open Source CMS. From version 5.7.0 until 5.7.12, TableAccessVoter::hasAccessToModule() in core-bundle/src/Security/Voter/DataContainer/TableAccessVoter.php caches authorization decisions using only $tokenHash, a hash of the user's security token, and omits the table returned by getDataSource(). If one request first checks a table allowed to the user and then a different denied table, the voter can reuse the allowed result, while DefaultDataContainerVoter can convert an incorrect abstention into a grant. A low-privileged backend user can consequently read, create, update, or delete records in tables outside assigned module permissions, including tables containing member or newsletter-subscriber data. This issue is fixed in version 5.7.12.\nhttps://www.cve.org/CVERecord?id=CVE-2026-107851https://github.com/contao/contao/security/advisories/GHSA-5974-gfqc-wrcmhttps://github.com/contao/contao/commit/9d6f582a4cc6a758ce11d1043fc9c0ba62c5f4c9https://github.com/contao/contao/releases/tag/5.7.12#contao#CVE_2026_107851#bot", "creation_timestamp": "2026-10-09T20:38:19.122360Z"}]}