CVE-2026-109397
High
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.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Thelia
PublishedOct 12, 2026
First seenOct 12, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Update
- Thelia Thelia3.1.2, 3.2.1 or later
Patches
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Thelia Thelia | v < 3.1.2, 3.2.0 ≤ v < 3.2.1 | 3.1.2, 3.2.1 |
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