CVE-2025-8812 atjiu pybbs Admin Panel settings cross site scripting

Medium 4.8 Published 10 Aug 2025 Updated 12 Aug 2025

Remote attackers can inject malicious scripts into the admin panel settings, potentially compromising administrator accounts and session integrity.

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

What is CVE-2025-8812?

CVE-2025-8812 is a medium-severity cross-site scripting vulnerability in atjiu pybbs, published on 10 Aug 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This affects an unknown part of the file /api/settings of the component Admin Panel. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 2fe4a51afbce0068c291bc1818bbc8f7f3b01a22. It is recommended to apply a patch to fix this issue.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2025-8812?

It affects 1 product.

Products include Pybbs Project Pybbs.

How do I fix CVE-2025-8812?

No fix has been published for CVE-2025-8812 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-2025-8812 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8812 exists.

Sources

Also known as GHSA-9fhg-4mh8-g5rc.