Wikimedia Foundation MediaWiki Exposure of Sensitive Information Vulnerability

Vulnerability

A vulnerability allowing the exposure of sensitive information to unauthorized actors has been identified in Wikimedia Foundation MediaWiki. This issue arises in certain program files and affects MediaWiki versions prior to 1.39.14, as well as 1.43.4 and 1.44.1.

Impact

Exploitation of this vulnerability could lead to unauthorized access to sensitive information.

Added: Feb 3, 2026, 12:26 AM
Updated: Feb 3, 2026, 12:26 AM

Vulnerability Rating

Custom Algorithm
spread
6.4
impact
2.5
exploitability
7.6
remediation
0.0
relevance
2.7
threat
0.0
urgency
2.9
incentive
4.2

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.