What’s Vulnerable › Vulnerabilities

CVE-2025-62669: UserInfoCard: activeLocalBlocksAllWikis does not do permissions checks

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-18 · updated 2026-10-09
• Weakness: CWE-200

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.

Affected products

• Wikimedia Foundation Mediawiki - CentralAuth Extension: from master before 1.39 — fixed in 1.39

How to fix

Upgrade to a fixed version: Wikimedia Foundation Mediawiki - CentralAuth Extension 1.39. Check the vendor advisory for mitigations.

References

• https://gerrit.wikimedia.org/r/q/I15b14cbff28ba769e72e4d037306d2395e74ad85
• https://phabricator.wikimedia.org/T400892
• https://phabricator.wikimedia.org/T400892

Get alerted when CVE-2025-62669 or the next vulnerability affects your stack