CVE-2026-66398

Summary

phpMyFAQ before v4.1.6 contains a remote code execution vulnerability in the configuration API that allows authenticated administrators with CONFIGURATION_EDIT and ATTACHMENT_ADD privileges to write arbitrary PHP files by manipulating the upgrade.lastDownloadedPackage setting. Attackers can upload a malicious ZIP file as an attachment, point the updater configuration to its stored path, and extract it into the application root to achieve code execution as the web server user.

Affected Software

VendorProductVersion RangeStatus
thorstenphpMyFAQ0 < 4.1.6affected
thorstenphpMyFAQ4.1.6unaffected

Weaknesses

  • CWE-494: Download of Code Without Integrity Check

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

References