Missing Authorization in Wikimedia Foundation Mediawiki - AbuseFilter Extension
CVE-2025-53499

9.1CRITICAL

Key Information:

Vendor

Wikimedia Foundation

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

What is CVE-2025-53499?

A Missing Authorization vulnerability has been identified in the AbuseFilter Extension of the Mediawiki product by the Wikimedia Foundation. This flaw permits unauthorized users to access restricted functionalities, potentially allowing them to exploit the system. Users of affected versions, specifically those prior to 1.39.13, 1.42.7, and 1.43.2, should take immediate action to update their instances to the latest versions to mitigate this security risk. For further details, refer to the provided references.

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Affected Version(s)

Mediawiki - AbuseFilter Extension 1.43.x

References

https://phabricator.wikimedia.org/T397196
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
.