Vulnerability · Published Sep 14, 2026 · Assigned by mitre
CVE-2023-37253
Low 3.1
In plain English
A low-severity security flaw in ProofreadPage from MediaWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 84.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MediaWiki | ProofreadPage | 0 – before 1.35.111.36.0 – before 1.38.71.39.0 – before 1.39.4 |
Weakness: CWE-669 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N