CVE-2026-8140: Cross-Site Request Forgery (CSRF)

Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/install/download/ . The download method in concrete/controllers/singlepage/dashboard/extend/install.php checks only the canInstallPackages permission before fetching a remote marketplace...

CVE-2026-8421: Cross-Site Request Forgery (CSRF)

Concrete CMS 9.5.0 and below contains a CSRF vulnerability in the installpackage method of concrete/controllers/singlepage/dashboard/extend/install.php. An attacker who can cause an authenticated administrator to visit a crafted page, and who has placed or caused a package to be present under...