Missing Authorization Vulnerability in Wikimedia MediaWiki AbuseFilter Extension
CVE-2025-53495

9.1CRITICAL

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki - Abusefilter Extension
Vendor
CVE Published:
7 July 2025

What is CVE-2025-53495?

A missing authorization vulnerability exists in the AbuseFilter Extension of Wikimedia's MediaWiki platform, enabling unauthorized access to sensitive functionalities. This flaw affects multiple versions of the extension, allowing users to bypass security measures and potentially manipulate content without proper authorization. It is essential for users to update to the latest versions to mitigate the risks associated with this vulnerability.

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Deploy the Patch

Affected Version(s)

Mediawiki - AbuseFilter Extension 1.43.x < 1.43.2

References

https://phabricator.wikimedia.org/T396750
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Abu...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dreamy Jazz
JSON
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