CVE-2023-37252

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. Special:CheckUserLog shows usernames that have been hidden.

  • Published Sep 14, 2026
  • CVSS 3.1 low
  • 0.2% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2023-37252 at the National Vulnerability Database