MediaWiki ManualLogEntry PHP info leak before 1.39.14/1.43.4/1.44.1
CVE-2025-61639 Published on February 2, 2026
Suppressed blocked IP is visible in Special:BlockList, RC, and other places
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/logging/ManualLogEntry.Php, includes/recentchanges/RecentChangeFactory.Php, includes/recentchanges/RecentChangeStore.Php.
This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.
Vulnerability Analysis
CVE-2025-61639 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2025-61639 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2025-61639
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Affected Versions
Wikimedia Foundation MediaWiki:- Version * and below 1.39.14, 1.43.4, 1.44.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.