CVE-2023-37253 Information disclosure in ProofreadPage
Attackers can leak information about suppressed users via the API and config variables in the ProofreadPage extension for MediaWiki.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-37253?
CVE-2023-37253 is a low-severity vulnerability in MediaWiki ProofreadPage, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in the ProofreadPage extension for MediaWiki through 1.39.3. It leaks information about a suppressed user via the API and config variables.
Weakness: CWE-669
Which versions are affected by CVE-2023-37253?
How do I fix CVE-2023-37253?
No fix has been published for CVE-2023-37253 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-37253 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37253 exists.
Sources
Also known as GHSA-37xr-g8rg-4qg9.