CVE-2026-76213

Summary

phpMyFAQ before 4.1.7 contains a brute-force vulnerability in the two-factor authentication step where the failure counter is session-scoped and reset on each successful password re-authentication. Attackers with a valid password can bypass the five-attempt limit by obtaining a fresh session cookie and repeatedly re-authenticating to reset the counter, enabling unbounded TOTP code guessing.

Affected Software

VendorProductVersion RangeStatus
thorstenphpMyFAQ0 < 4.1.7affected
thorstenphpMyFAQ4.1.7unaffected

Weaknesses

  • CWE-307: Improper Restriction of Excessive Authentication Attempts

ADP Enrichment

CISA ADP Vulnrichment

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

Additional References

References