CVE-2026-89145

Flextype CMS versions 0.9.9 through 1.0.0-alpha.3 fail to HTML-escape plugin directory names in the dependency error page rendered by getValidPluginsDependencies(). Attackers with write access to the plugins directory can create a plugin with HTML characters in its name to execute arbitrary scripts in users' browsers when dependency validation fails.

  • Published Sep 11, 2026
  • CVSS 2.4 low
  • 0.2% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-89145 at the National Vulnerability Database