CVE-2024-47840

Public Exploit
Stored XSS through sidebar in Apex skin

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.

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory wikimedia.org Vendor Advisory wikimedia.org
Affected: The Wikimedia Foundation Mediawiki - Apex skin
Published at:
Updated at:

References

Link Tags
https://phabricator.wikimedia.org/T368628 issue tracking vendor advisory
https://phabricator.wikimedia.org/T370081 issue tracking vendor advisory exploit
https://gerrit.wikimedia.org/r/q/Id9093783051c3f8e6dcb5dc89f9493a5f5cf7bd7 patch

Frequently Asked Questions

What is the severity of CVE-2024-47840?
CVE-2024-47840 has been scored as a medium severity vulnerability.
How to fix CVE-2024-47840?
To fix CVE-2024-47840, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-47840 being actively exploited in the wild?
It is possible that CVE-2024-47840 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-47840?
CVE-2024-47840 affects The Wikimedia Foundation Mediawiki - Apex skin.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.