CVE-2025-6927 Autoblocks from global account suppressions are publicly visible
Attackers can view publicly suppressed autoblocks from global accounts, exposing sensitive user data in MediaWiki installations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-6927?
CVE-2025-6927 is a low-severity vulnerability in Wikimedia Foundation MediaWiki, published on 2 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php, includes/api/ApiQueryBlocks.Php.
This issue affects MediaWiki: from >= 1.42.0 before 1.39.13, 1.42.7 1.43.2, 1.44.0.
Weakness: CWE-22
Which versions are affected by CVE-2025-6927?
How do I fix CVE-2025-6927?
Upgrade to a fixed version.
Is CVE-2025-6927 being exploited?
There is no known exploitation of CVE-2025-6927 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-6927, GHSA-vw3r-fh3c-r4pj, UBUNTU-CVE-2025-6927.