CVE-2026-109397CWE-434unrestricted-file-upload

CVE-2026-109397

High · published October 12, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
37.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00441 · 37.4th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-10-12T20:17Z
References (7)
https://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/File/Service/FileProcessorService.php#L119-L160 · [email protected]https://github.com/thelia/thelia/commit/6b706f5cb96e6b12d890c6d16edb1c9d1fd8191a · [email protected]https://github.com/thelia/thelia/commit/b71258902b5dd278007d0f37ddad45f76d06d5bc · [email protected]https://github.com/thelia/thelia/releases/tag/3.1.2 · [email protected]https://github.com/thelia/thelia/releases/tag/3.2.1 · [email protected]https://github.com/thelia/thelia/security/advisories/GHSA-5524-qfxp-33v9 · [email protected]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 · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 15:16Z
    Thelia before 3.1.2 and 3.2.x before 3.2.1 File Upload RCE via Filename Trailing Space
    cvelistv5
  • 12 OCT 15:16Z
    Thelia before 3.1.2 and 3.2.x before 3.2.1 File Upload RCE via Filename Trailing Space
    cvelistv5