CVE-2025-23073 API list=globalblocks can reveal IP of autoblock if username and IP are included in the bgtargets parameter
Attackers can reveal private IP addresses of autoblocked users via the globalblocks API, exposing sensitive user data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-23073?
CVE-2025-23073 is a low-severity vulnerability in Wikimedia Foundation Mediawiki - GlobalBlocking Extension, published on 14 Jan 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - GlobalBlocking Extension allows Retrieve Embedded Sensitive Data.
This issue briefly impacted the master branch of MediaWiki’s GlobalBlocking Extension.
Which versions are affected by CVE-2025-23073?
How do I fix CVE-2025-23073?
No fix has been published for CVE-2025-23073 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-23073 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-23073 exists.
Sources
Also known as GHSA-w9r8-xh84-c8wx.