CVE-2026-68534 Concrete CMS below 9.5.2 is vulnerable to Stored XSS via unescaped Express entry labels in association selectors

Concrete CMS before 9.5.3 rendered Express entry labels as raw HTML when displaying associated entries, resulting in stored cross-site scripting. An unauthenticated attacker could submit a payload through a public Express Form; it then executed in an administrator's dashboard session when the...

CVE-2026-68534

Concrete CMS before 9.5.3 contained a stored cross-site scripting (XSS) vulnerability caused by Express entry labels being rendered as raw HTML in association selectors. An unauthenticated attacker could submit a malicious payload through a public Express Form, which would then execute in an admi...