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CVE-2026-56702

Adminer before 5.4.3 Unrestricted File Upload via AdminerFileUpload

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.4.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

Adminer versions before 5.4.3 contain an unrestricted file upload vulnerability in the AdminerFileUpload plugin that allows authenticated users to upload PHP files by exploiting a permissive default extension allowlist. Attackers can upload PHP webshells to columns ending in _path and execute arbitrary code as the web-server user when uploadPath is web-served.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • vrana adminer

    fixed in 5.4.3

References 2

GitHub · vrana/adminer

vulncheck.com