CVE-2026-6735

XSS Vulnerability in PHP-FPM status page

Publication Date 2026-05-10
Severity High
Type Cross-Site Scripting
Affected PHP Versions
  • 7.1.0-7.1.33
  • 7.2.0-7.2.34
  • 7.3.0-7.3.33
  • 7.4.0-7.4.33
  • 8.0.0-8.0.30
  • 8.1.0-8.1.34
  • 8.2.0-8.2.30
  • 8.3.0-8.3.30
  • 8.4.0-8.4.20
  • 8.5.0-8.5.5
Fixed Product Versions
  • ZendPHP 7.1
  • ZendPHP 7.2
  • ZendPHP 7.3
  • ZendPHP 7.4
  • ZendPHP 8.1
  • ZendPHP 8.2
  • ZendPHP 8.3
  • ZendPHP 8.4
  • ZendPHP 8.5
  • ZendServer 2021.4.5

CVE Details

An unauthenticated attacker over the network can craft a malicious URL that, when clicked by a user viewing the PHP-FPM status page, executes arbitrary JavaScript code in that user's browser within the context of the status page domain

Recommendations

Restrict access to the PHP-FPM status page to administrators only. Consider implementing Content Security Policy headers for the PHP-FPM status page to limit or prevent script execution.