{"id":"CVE-2026-47346","aliases":["GHSA-hwvq-2w67-rvxp"],"title":"TYPO3 CMS has Broken Access Control in its Form Framework","summary":"TYPO3 CMS has Broken Access Control in its Form Framework","severity":"high","cwe":["CWE-178","CWE-862"],"vendor":"typo3","product":"typo3/cms-core","ecosystem":"composer","affected":["typo3/cms-core < 10.4.57","typo3/cms-core >= 11.0.0, < 11.5.51","typo3/cms-core >= 12.0.0, < 12.4.46","typo3/cms-core >= 13.0.0, < 13.4.31","typo3/cms-core >= 14.0.0, < 14.3.3","typo3/cms-form < 10.4.57","typo3/cms-form >= 11.0.0, < 11.5.51","typo3/cms-form >= 12.0.0, < 12.4.46","typo3/cms-form >= 13.0.0, < 13.4.31","typo3/cms-form >= 14.0.0, < 14.3.3"],"patched":["typo3/cms-core 10.4.57","typo3/cms-core 11.5.51","typo3/cms-core 12.4.46","typo3/cms-core 13.4.31","typo3/cms-core 14.3.3","typo3/cms-form 10.4.57","typo3/cms-form 11.5.51","typo3/cms-form 12.4.46","typo3/cms-form 13.4.31","typo3/cms-form 14.3.3"],"published":"2026-06-12","updated":"2026-06-12","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-hwvq-2w67-rvxp","references":[{"url":"https://github.com/TYPO3/typo3/security/advisories/GHSA-hwvq-2w67-rvxp"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47346"},{"url":"https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47"},{"url":"https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45"},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47346.yaml"},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2026-008"},{"url":"https://github.com/advisories/GHSA-hwvq-2w67-rvxp"}],"tags":["ghsa","composer"],"epss":0.00253,"epssPercentile":0.17004,"ingestedAt":"2026-07-07T15:41:59.025Z","slug":"CVE-2026-47346","body":"## Overview\n\n### Problem\nBackend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., `.FORM.YAML`) to bypass the Form Framework's upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts.\n\n### Solution\nUpdate to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.\n\n### Credits\nTYPO3 CMS thanks Alexander Künzl for reporting this issue, and to TYPO3 core & security team members Oliver Hader and Benjamin Franzke for fixing it.\n\n### Resources\n* [TYPO3-CORE-SA-2026-008](https://typo3.org/security/advisory/typo3-core-sa-2026-008)\n\n## Affected packages\n\n- `typo3/cms-core < 10.4.57`\n- `typo3/cms-core >= 11.0.0, < 11.5.51`\n- `typo3/cms-core >= 12.0.0, < 12.4.46`\n- `typo3/cms-core >= 13.0.0, < 13.4.31`\n- `typo3/cms-core >= 14.0.0, < 14.3.3`\n- `typo3/cms-form < 10.4.57`\n- `typo3/cms-form >= 11.0.0, < 11.5.51`\n- `typo3/cms-form >= 12.0.0, < 12.4.46`\n- `typo3/cms-form >= 13.0.0, < 13.4.31`\n- `typo3/cms-form >= 14.0.0, < 14.3.3`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `typo3/cms-core 10.4.57`\n- `typo3/cms-core 11.5.51`\n- `typo3/cms-core 12.4.46`\n- `typo3/cms-core 13.4.31`\n- `typo3/cms-core 14.3.3`\n- `typo3/cms-form 10.4.57`\n- `typo3/cms-form 11.5.51`\n- `typo3/cms-form 12.4.46`\n- `typo3/cms-form 13.4.31`\n- `typo3/cms-form 14.3.3`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}