UpHeron
All vulnerabilities

Servers and applications

CVE-2023-37303

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In certain situations, an attempt to block a user fails after a temporary browser hang and a DBQueryDisconnectedError error message.

Severity
Critical 9.8
Published
30 Jun 2023
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Every version up to 1.39.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-37303
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-37303