CVE-2026-92919

admin3 through 3.0.0 fails to sanitize client-supplied filenames in the upload handler, allowing authenticated users to write files outside the storage root on Windows deployments. Attackers can use dot-dot path segments in filenames to escape the configured storage directory and overwrite arbitrary files accessible to the server process.

  • Published Sep 17, 2026
  • CVSS 7.2 high
  • 0.6% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-92919 at the National Vulnerability Database