CVE-2025-53499 Unauthorized Inspection of Protected Variables in AbuseFilter

Critical 9.1 Published Updated

Attackers can inspect protected variables in the AbuseFilter extension without authorization, exposing sensitive configuration data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-53499?

CVE-2025-53499 is a critical missing authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Weakness: CWE-862

Which versions are affected by CVE-2025-53499?

How do I fix CVE-2025-53499?

No fix has been published for CVE-2025-53499 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-53499 being exploited?

There is no known exploitation of CVE-2025-53499 in the wild and no public exploit code.

Sources

Also known as GHSA-f8g8-423p-p43f.

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