CVE-2026-109397
Published:October 12, 2026
Updated:October 13, 2026
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.
Affected Packages
https://github.com/thelia/thelia.git (GITHUB):
Affected version(s) >=3.1.0 <3.1.2Fix Suggestion:
Update to version 3.1.2https://github.com/thelia/thelia.git (GITHUB):
Affected version(s) =3.2.0 <3.2.1Fix Suggestion:
Update to version 3.2.1thelia/thelia (PHP):
Affected version(s) =3.2.0 <3.2.1Fix Suggestion:
Update to version 3.2.1thelia/core (PHP):
Affected version(s) =3.2.0 <3.2.1Fix Suggestion:
Update to version 3.2.1thelia/core (PHP):
Affected version(s) >=3.1.0 <3.1.2Fix Suggestion:
Update to version 3.1.2thelia/thelia (PHP):
Affected version(s) >=3.1.0 <3.1.2Fix Suggestion:
Update to version 3.1.2Related Resources (10)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Unrestricted Upload of File with Dangerous Type
EPSS
Base Score:
0.44