CVE-2026-15305
TYPO3 CMS - Unrestricted File Upload in Form Framework
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jul 14, 2026
- Updated
- Jul 15, 2026
- Reserved
- Jul 9, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N | TYPO3 |
Weaknesses
- CWE-351 Insufficient Type Distinction
Affected Products
| Product | Versions |
|---|---|
TYPO3 CMSTYPO3 |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.