Vulnerability · Published Oct 21, 2025 · Assigned by wikimedia-foundation
CVE-2025-62661Do permission checking when getting counts of global and local edits, new articles and thanks
Medium 6.9
In plain English
A medium-severity incorrect default permissions in Mediawiki - Thanks Extension, Mediawiki - Growth Experiments Extension from The Wikimedia Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Official description
Incorrect Default Permissions vulnerability in The Wikimedia Foundation Mediawiki - Thanks Extension, Mediawiki - Growth Experiments Extension allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Mediawiki - Thanks Extension, Mediawiki - Growth Experiments Extension: from 1.43 before 1.44.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Wikimedia Foundation | Mediawiki - Thanks Extension, Mediawiki - Growth Experiments Extension | 1.43 – before 1.44 |
Weakness: CWE-276 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L