Low · 3.5 CVE-2025-23073 EUVD-2025-3105GHSA-w9r8-xh84-c8wx

API list=globalblocks can reveal IP of autoblock if username and IP are included in the bgtargets parameter

Published Jan 14, 2025 · Updated Oct 16, 2025 · Assigned by wikimedia-foundation

Vendor: Wikimedia Foundation Product: Mediawiki - GlobalBlocking Extension Category: Web / CMS

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - GlobalBlocking Extension allows Retrieve Embedded Sensitive Data.

This issue briefly impacted the master branch of MediaWiki’s GlobalBlocking Extension.

Affected products

Vendor	Product	Affected	Fixed
Wikimedia Foundation	Mediawiki - GlobalBlocking Extension	master	—

Advisories 1

WID-SEC-2025-0098 MediaWiki: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 14, 2025

References

https://phabricator.wikimedia.org/T377855
https://gerrit.wikimedia.org/r/q/I2a2d32aedf6328be0a9f1b4e04a6567a25f19486