Description (CNA)
Users were able to upload files with arbitrary MIME types to forms using FileUpload or ImageUpload elements with allowedMimeTypes configured. The restriction was not enforced server-side because the MimeTypeValidator was registered during form building before concrete form definition properties were applied, resulting in the validator never being added to the processing pipeline. This issue affects TYPO3 CMS versions 14.2.0-14.3.4.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| TYPO3 / TYPO3 CMS | affected 14.2.0 before 14.3.5 |
CWE
CWE-351
References
- https://typo3.org/security/advisory/typo3-core-sa-2026-020
- https://github.com/TYPO3/typo3/commit/817ad41cc9dd28aac0fc4d0fe16fc25d46dd554a
- https://github.com/TYPO3/typo3/commit/cfda21050398eb145211a4fa6f9988f10e43e10b
ADP enrichment
No English description supplied.
No references supplied.