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phpMyFAQ vulnerability

phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authorization bypass vulnerability in isFaqAccessibleForUser() that treats a missing FAQ translation as visible to unauthenticated users. Attackers can send a mismatched Accept-Language header to the comments and attachments API endpoints to read comments and attachment listings of unpublished or ACL-restricted FAQs.

Published 17 Oct 2026Updated 17 Oct 20262 sources
CVSS 6.9
Overview Sources History

What happened

phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authorization bypass vulnerability in isFaqAccessibleForUser() that treats a missing FAQ translation as visible to unauthenticated users. Attackers can send a mismatched Accept-Language header to the comments and attachments API endpoints to read comments and attachment listings of unpublished or ACL-restricted FAQs.

Affected versions

phpMyFAQ: 4.2.0-alpha through before 4.2.0-beta (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.

CorrectionsReport an issue