NVD HIGH: CVE-2026-8421 — Concrete CMS 9.5.0 and below contains a CSRF vulnerability in the install_packag...
Concrete CMS 9.5.0 and below contains a CSRF vulnerability in the install_package() method of concrete/controllers/single_page/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 DIR_PACKAGES/<handle>/, can force the installation of that package without any CSRF protection. Pack
CVE-2026-8421