Sensitive Information Exposure in Wikimedia Foundation's MediaWiki
CVE-2025-61639

1.7LOW

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki
Vendor
CVE Published:
2 February 2026

What is CVE-2025-61639?

A vulnerability exists in Wikimedia Foundation's MediaWiki that allows unauthorized actors to gain access to sensitive information. This issue is rooted in specific program files such as includes/logging/ManualLogEntry.Php, includes/recentchanges/RecentChangeFactory.Php, and includes/recentchanges/RecentChangeStore.Php, which are publically accessible without adequate safeguards. Affected versions include those prior to 1.39.14 as well as 1.43.4 and 1.44.1. It is crucial for users of MediaWiki to assess their installations and implement the necessary updates to mitigate these risks.

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Affected Version(s)

MediaWiki * < 1.39.14, 1.43.4, 1.44.1

References

https://phabricator.wikimedia.org/T280413

CVSS V4

Score:
1.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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