CVE-2025-53495 Unauthorized Disclosure of IP Reputation in AbuseFilter
Attackers can access IP reputation data without authorization in the MediaWiki AbuseFilter extension, exposing sensitive information.
- 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-2025-53495?
CVE-2025-53495 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-2025-53495?
How do I fix CVE-2025-53495?
No fix has been published for CVE-2025-53495 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-2025-53495 being exploited?
There is no known exploitation of CVE-2025-53495 in the wild and no public exploit code.
Sources
Also known as GHSA-vr43-x7p6-79wp.