CVE-2026-109397
Description
Thelia before 3.1.2 and 3.2.x before 3.2.1 contains an unrestricted file upload vulnerability that allows authenticated back-office users to upload PHP files by appending a trailing space to filenames. FileProcessorService validates the raw filename but FileManager::sanitizeFileName() strips the space, storing an executable .php file under public/cache/documents/ for code execution as the web server user.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/File/Service/FileProcessorService.php#L119-L160
- https://github.com/thelia/thelia/commit/6b706f5cb96e6b12d890c6d16edb1c9d1fd8191a
- https://github.com/thelia/thelia/commit/b71258902b5dd278007d0f37ddad45f76d06d5bc
- https://github.com/thelia/thelia/releases/tag/3.1.2
- https://github.com/thelia/thelia/releases/tag/3.2.1
- https://github.com/thelia/thelia/security/advisories/GHSA-5524-qfxp-33v9
- https://www.vulncheck.com/advisories/thelia-before-3.1.2-and-3.2-x-before-3.2.1-file-upload-rce-via-filename-trailing-space
CWEs
CWE-434
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.