CVE-2025-65676 Cross-site scripting in n/a

Medium 5.4 Published Updated

Authenticated attackers can execute arbitrary code via crafted SVG cover images in Classroomio LMS.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-65676?

CVE-2025-65676 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG cover images.

Weakness: CWE-79

Which versions are affected by CVE-2025-65676?

It affects 1 product.

Products include Classroomio Classroomio.

How do I fix CVE-2025-65676?

No fix has been published for CVE-2025-65676 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-65676 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-65676 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-rxc6-c5mm-j9vx.

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