CVE-2026-109397 Thelia - Unrestricted File Upload

Thelia < 3.1.2 and 3.2.x < 3.2.1 contain an unrestricted file upload vulnerability caused by inconsistent filename sanitization in FileProcessorService and FileManager::sanitizeFileName(), letting authenticated back-office users upload executable PHP files for code execution as the web server user.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.44% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Unrestricted File Upload
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-434

Vendor fix

Upgrade to version 3.1.2 or 3.2.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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