CVE-2026-81925

Concrete CMS before 9.5.3 is vulnerable to reflected cross-site scripting (XSS) caused by improper neutralization of a user-supplied custom date format when rendering conversation messages. An attacker could execute arbitrary JavaScript in a victim's browser by tricking them into submitting a cra...

EUVD-2026-79939

Concrete CMS before 9.5.3 improperly neutralized a user-supplied custom date format when rendering conversation messages, resulting in reflected cross-site scripting. An attacker could execute arbitrary JavaScript in the browser of a user who was tricked into submitting a crafted POST request to...