CVE-2026-66397 Details
Description
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.
A path traversal vulnerability has been identified in phpMyFAQ versions prior to 4.1.6, specifically in the category update feature. The issue arises because the 'existing_image' field does not properly validate path traversal sequences, allowing authenticated attackers to delete arbitrary files. This exploitation takes advantage of inadequate input sanitization in the 'Image::delete()' method. Attackers can target the 'database.php' configuration file to bypass the installation gate, access the setup wizard, and create new superadmin accounts.
Users can upgrade to phpMyFAQ version 4.1.6 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 27, 2026CISA-ADP
Assessed Jul 27, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-mh9w-5hr8-3272 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-mh9w-5hr8-3272 | [email protected] | AdvisoryExploitRemedyVendor |
| https://www.vulncheck.com/advisories/phpmyfaq-before-path-traversal-via-category-image-deletion | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| phpMyFAQ | <= 4.1.5 (semver) 4.2.0-alpha (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 27, 2026 | CVE Modified | CISA-ADP |
| Jul 27, 2026 | New CVE Received | [email protected] |