CVE-2024-47840 Stored XSS through sidebar in Apex skin
Attackers can inject malicious scripts via the sidebar in the MediaWiki Apex skin, potentially compromising user sessions and data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-47840?
CVE-2024-47840 is a medium-severity cross-site scripting vulnerability in The Wikimedia Foundation Mediawiki - Apex skin, published on 5 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Apex skin allows Stored XSS.This issue affects Mediawiki - Apex skin: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.
Weakness: CWE-79
Which versions are affected by CVE-2024-47840?
It affects 1 product.
Products include Wikimedia Apex.
How do I fix CVE-2024-47840?
No fix has been published for CVE-2024-47840 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-2024-47840 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-47840 exists.
Sources
Also known as GHSA-mmf2-8r78-pm42.