CVE-2026-66398
phpMyFAQ before v4.1.6 contains a remote code execution vulnerability in the configuration API that allows authenticated administrators with CONFIGURATION_EDIT and ATTACHMENT_ADD privileges to write arbitrary PHP files by manipulating the upgrade.lastDownloadedPackage setting. Attackers can upload a malicious ZIP file as an attachment, point the updater configuration to its stored path, and extract it into the application root to achieve code execution as the web server user.
Published:Jul 27, 2026
Last Modified:Jul 28, 2026
EPS:Jul 27, 2026
EPSS Score:
CVSS Score:9.4
Affected Products
Vendor
Product
Action
Vendor
Phpmyfaq
Product
Phpmyfaq
Phpmyfaq
Phpmyfaq
Vendor
Thorsten
Product
Phpmyfaq
Thorsten
Phpmyfaq
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
