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Wikimedia Foundation AbuseFilter Vulnerability Allowing Abuse of Filter Logic

Vulnerability

A vulnerability exists in Wikimedia Foundation AbuseFilter versions prior to 1.43.7, 1.44.4, and 1.45.2. This issue allows for the manipulation of filter logic, which could be exploited to bypass or abuse the intended functionality of the AbuseFilter tool.

Impact

Exploitation of this vulnerability could lead to unintended behavior in the AbuseFilter, allowing users to manipulate or bypass filters that are meant to prevent certain types of edits or actions.

Added: May 11, 2026, 4:48 PM
Updated: May 11, 2026, 4:48 PM

Vulnerability Rating

Custom Algorithm
spread
3.4
impact
1.9
exploitability
7.6
remediation
0.0
relevance
8.0
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.