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-2026-81897

Concrete CMS versions below 9.5.3 are vulnerable to stored cross-site scripting via the save_control action in the Express entities forms dashboard controller. The missing anti-CSRF token validation allows an unauthenticated remote attacker to cause an authenticated administrator to submit a forg...

EUVD-2026-78932

In Concrete CMS below CMS 9.5.3, the savecontrol action in the Express entities forms dashboard controller did not validate the anti-CSRF token. By causing an authenticated administrator to submit a forged cross-site request, a remote attacker without credentials could write attacker-controlled...

Concrete CMS: Stored XSS in Headline TextControl element in Express forms [ concrete5 8.1.0 ]

Intro Luke, I am your Crayons! Type of issue: Core CMS issue Level of severity: Internal Attack Vector Concrete5 version: 8.1.0 Summary There is Stored XSS vulnerability in Headline element of TextControl Express element. This vulnerability allows malicious user to embed JavaScript code and execu...