| Package | Affected versions | Patched versions |
|---|---|---|
| typo3/cms-core | ≥ 11.0.0, < 11.5.51≥ 12.0.0, < 12.4.46≥ 13.0.0, < 13.4.31≥ 14.0.0, < 14.3.3< 10.4.57 | 11.5.5112.4.4613.4.3114.3.310.4.57 |
| typo3/cms-form | ≥ 11.0.0, < 11.5.51≥ 12.0.0, < 12.4.46≥ 13.0.0, < 13.4.31≥ 14.0.0, < 14.3.3< 10.4.57 | 11.5.5112.4.4613.4.3114.3.310.4.57 |
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts.
Update 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.
TYPO3 CMS thanks “Ethan” for reporting this issue, and TYPO3 core & security team member Oliver Hader for fixing it.
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