CVE-2022-3963 gnuboard5 FAQ Key ID faq.php cross site scripting

Low 3.5 Published 12 Nov 2022 Updated 15 Apr 2025

An attacker can execute arbitrary scripts in the victim's browser via the FAQ Key ID handler in gnuboard5.

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-2022-3963?

CVE-2022-3963 is a low-severity cross-site scripting vulnerability in unspecified gnuboard5, published on 12 Nov 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability was found in gnuboard5. It has been classified as problematic. Affected is an unknown function of the file bbs/faq.php of the component FAQ Key ID Handler. The manipulation of the argument fm_id leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 5.5.8.2.1 is able to address this issue. The name of the patch is ba062ca5b62809106d5a2f7df942ffcb44ecb5a9. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-213540.

Weakness: CWE-79, CWE-707

Which versions are affected by CVE-2022-3963?

It affects 1 product.

Products include Sir Gnuboard.

How do I fix CVE-2022-3963?

No fix has been published for CVE-2022-3963 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-2022-3963 being exploited?

There is no known exploitation of CVE-2022-3963 in the wild and no public exploit code.

Sources

Also known as GHSA-57g7-92mv-gwwp.