CVE-2025-62669 UserInfoCard: activeLocalBlocksAllWikis does not do permissions checks
An attacker can access sensitive information via the CentralAuth extension due to missing permission checks in the UserInfoCard component.
- 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-2025-62669?
CVE-2025-62669 is a medium-severity vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension, published on 18 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure.This issue affects Mediawiki - CentralAuth Extension: from master before 1.39.
Weakness: CWE-200
Which versions are affected by CVE-2025-62669?
How do I fix CVE-2025-62669?
No fix has been published for CVE-2025-62669 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-62669 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62669 exists.
Sources
Also known as GHSA-54m9-295v-m438.