Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows XSS Targeting Non-Script Elements. The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.

INFO

Published Date :

2026-04-07T19:17:51.638Z

Last Modified :

2026-04-08T18:48:41.035Z

Source :

wikimedia-foundation
AFFECTED PRODUCTS

The following products are affected by CVE-2026-39838 vulnerability.

Vendors Products
Wikimedia
  • Mediawiki-proofreadpage Extension
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-39838.

URL Resource
https://gerrit.wikimedia.org/r/q/Idd51e18479b32b7176b43ff74ca1c49d6bdd0628 cve-icon cve-icon
https://phabricator.wikimedia.org/T406088 cve-icon cve-icon
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CVSS Vulnerability Scoring System

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