CVE-2024-40600 Cross-site scripting in n/a

Medium 6.1 Published Updated

Attackers can inject malicious scripts via sidebar menu entries in the Metrolook skin, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-40600?

CVE-2024-40600 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 6 Jul 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in the Metrolook skin for MediaWiki through 1.42.1. There is stored XSS via MediaWiki:Sidebar top-level menu entries.

Weakness: CWE-79

Which versions are affected by CVE-2024-40600?

1 open source package ship an affected version, including mediawiki. It affects 1 product.

PackageAffectedFixed in
mediawiki BitnamiAll versions1.44.0

Products include Mediawiki Mediawiki.

How do I fix CVE-2024-40600?

Upgrade mediawiki to 1.44.0 or later.

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-2024-40600 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-40600 exists.

All Mediawiki Mediawiki vulnerabilities

Sources

Also known as BIT-mediawiki-2024-40600, GHSA-x6x9-24j8-5vh6.

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