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TI-2026-26972 Aliases CVE-2026-34728GHSA-38m8-xrfj-v38x

phpMyFAQ: Path Traversal - Arbitrary File Deletion in MediaBrowserController

Priority HIGH 73CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the MediaBrowserController::index() method handles file deletion for the media browser. When the fileRemove action is triggered, the user-supplied name parameter is concatenated with the base upload directory path without any path traversal validation. The FILTER_SANITIZE_SPECIAL_CHARS filter only encodes HTML special characters (&, ', ", <, >) and characters with ASCII value < 32, and does not prevent directory traversal sequences like ../. Additionally, the endpoint does not validate CSRF tokens, making it exploitable via CSRF attacks. This issue has been patched in version 4.1.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00705 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed phpMyFAQ (thorsten): 4.1.1phpmyfaq/phpmyfaq (Packagist): 4.1.1

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 4.1.14.1.1Patch availableCNA
—phpmyfaq/phpmyfaq (Packagist)before 4.1.14.1.1Patch availableGHSA-38m8-xrfj-v38x
  • phpMyFAQ Vendorthorsten Affected before 4.1.1 Fixed in 4.1.1 Patch available CNA
  • phpmyfaq/phpmyfaq (Packagist) Vendor— Affected before 4.1.1 Fixed in 4.1.1 Patch available GHSA-38m8-xrfj-v38x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*before 4.1.1Vulnerablethorsten
  • cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:* Versions before 4.1.1 Vulnerable ·thorsten

Remediation

  • Fix · CNA phpMyFAQ (thorsten) Fixed in 4.1.1
  • Fix · GHSA-38m8-xrfj-v38x phpmyfaq/phpmyfaq (Packagist) Fixed in 4.1.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34728
  2. 2026-10-03 Alias added: GHSA-38m8-xrfj-v38x

References

Exploit 1

Advisory 1

Other 2

  • TI-2023-00296 Improper Authentication in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
  • TI-2026-53313 phpMyFAQ 3.1.0 through 4.1.6 Authentication Bypass via LDAP CVSS 4.0HIGH 8.8
  • TI-2025-37331 phpMyFAQ duplicate email registration allows multiple accounts with the same email CVSS 3.1CRITICAL 9.8
  • TI-2024-36257 phpMyFAQ Generates an Error Message Containing Sensitive Information if database server is not available CVSS 3.1HIGH 8.6
  • TI-2023-03720 Improper Neutralization of Formula Elements in a CSV File in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
  • TI-2023-00749 Command Injection in thorsten/phpmyfaq CVSS 3.1CRITICAL 9.8
See all 153 →

Sources

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