CVE-2025-15109 jackq XCMS upload.php unrestricted upload

Medium 6.9 Published Updated

Remote attackers can upload malicious files via an unrestricted upload vulnerability in the XCMS web application, potentially leading to code execution.

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

What is CVE-2025-15109?

CVE-2025-15109 is a medium-severity vulnerability in jackq XCMS, published on 27 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw has been found in jackq XCMS up to 3fab5342cc509945a7ce1b8ec39d19f701b89261. This impacts an unknown function of the file Public/javascripts/admin/plupload-2.1.2/examples/upload.php. This manipulation causes unrestricted upload. It is possible to initiate the attack remotely. The exploit has been published and may be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-434, CWE-284

Which versions are affected by CVE-2025-15109?

How do I fix CVE-2025-15109?

No fix has been published for CVE-2025-15109 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-15109 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15109 exists.

Sources

Also known as GHSA-f342-w736-j52r.

Is CVE-2025-15109 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free