CVE-2026-103529 CVE-2026-103529

Medium 5.4 Published Updated

Authenticated administrators can upload malicious PHP modules in Thelia, leading to remote code execution with web server privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-103529?

CVE-2026-103529 is a medium-severity vulnerability in Thelia, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Thelia v2.6.0 permits authenticated administrators to upload and install modules via the ZIP upload function without validating or sandboxing embedded PHP code. An attacker can include malicious PHP code in a module's `install()` method which will then be executed upon installation, enabling remote code execution with the privileges of the web server.

Weakness: CWE-434

Which versions are affected by CVE-2026-103529?

How do I fix CVE-2026-103529?

No fix has been published for CVE-2026-103529 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-103529 being exploited?

There is no known exploitation of CVE-2026-103529 in the wild and no public exploit code.

Sources

Also known as GHSA-9w4q-cg82-c2wf.

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