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TI-2026-47156 Aliases CVE-2026-66397GHSA-4cv6-9jjm-xp2g

phpMyFAQ before 4.1.6 Path Traversal via category image deletion

Priority HIGH 72CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

phpMyFAQ before 4.1.6 fails to validate path traversal sequences in the existing_image field during category updates, allowing authenticated attackers to delete arbitrary files by exploiting insufficient sanitization in Image::delete(). Attackers can delete the database.php configuration file to disable the installation gate and access the public setup wizard to create new superadmin accounts.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00398 34th percentileScored 2026-11-07
Fix Fixed phpMyFAQ (thorsten): 4.1.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
thorstenphpMyFAQbefore 4.1.64.1.6Patch availableCNA
  • phpMyFAQ Vendorthorsten Affected before 4.1.6 Fixed in 4.1.6 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*——thorsten
  • cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:* Versions — — ·thorsten

Remediation

  • Fix · CNA phpMyFAQ (thorsten) Fixed in 4.1.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    thorsten phpMyFAQ 4.1.6

    3 records Highest priority Priority HIGH 3 HIGH

    Other records, highest priority first

    • TI-2026-47157 phpMyFAQ before 4.1.6 Remote Code Execution via Configuration APIPriority HIGH 76
    • TI-2026-47158 phpMyFAQ before 4.1.6 Privilege Escalation via Group MembershipPriority HIGH 72
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-66397
  2. 2026-10-03 Alias added: GHSA-4cv6-9jjm-xp2g

References

Advisory 1

  • TI-2023-00296 Improper Authentication in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
  • TI-2026-76118 Authentication bypass in phpMyFAQ via WebAuthn credential injection CVSS 4.0CRITICAL 9.3
  • TI-2026-32868 phpMyFAQ - Unauthenticated Two-Factor Authentication Brute-Force via /admin/check Endpoint CVSS 4.0CRITICAL 9.3
  • TI-2026-76108 Unauthenticated denial of service in phpMyFAQ API pagination CVSS 4.0HIGH 8.7
  • TI-2026-53313 phpMyFAQ 3.1.0 through 4.1.6 Authentication Bypass via LDAP CVSS 4.0HIGH 8.8
  • TI-2026-34083 phpMyFAQ - Unauthenticated Information Disclosure via getIdFromSolutionId Permission Bypass CVSS 4.0HIGH 8.7
See all 224 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences