CVE-2024-36123 Citizen has a Stored Cross-Site Scripting Vulnerability by editing MediaWiki:Tagline

Medium 6.5 Published 3 Jun 2024 Updated 2 Aug 2024

Attackers with interface editing permissions can inject malicious scripts via the Tagline page, leading to XSS attacks against other users.

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

What is CVE-2024-36123?

CVE-2024-36123 is a medium-severity cross-site scripting vulnerability in StarCitizenTools mediawiki-skins-Citizen, published on 3 Jun 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. The page `MediaWiki:Tagline` has its contents used unescaped, so custom HTML (including Javascript) can be injected by someone with the ability to edit the MediaWiki namespace (typically those with the `editinterface` permission, or sysops). This vulnerability is fixed in 2.16.0.

Weakness: CWE-79

Which versions are affected by CVE-2024-36123?

It affects 1 product.

Products include Starcitizen.tools Citizen.

How do I fix CVE-2024-36123?

No fix has been published for CVE-2024-36123 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-2024-36123 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-36123 exists.

Sources

Also known as GHSA-jhm6-qjhq-5mf9, UBUNTU-CVE-2024-36123.