CVE-2026-81897: Cross-Site Request Forgery (CSRF)

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...

CVE-2022-43695: Improper Neutralization of Input During Web Page Generation

Concrete CMS formerly concrete5 below 8.5.10 and between 9.0.0 and 9.1.2 is vulnerable to Stored Cross-Site Scripting XSS in dashboard/system/express/entities/associations because Concrete CMS allows association with an entity name that doesn’t exist or, if it does exist, contains XSS since it wa...

CVE-2022-30118

Title for CVE: XSS in /dashboard/system/express/entities/forms/savecontrol/GUID: old browsers only.Description: When using Internet Explorer with the XSS protection disabled, editing a form control in an express entities form for Concrete 8.5.7 and below as well as Concrete 9.0 through 9.0.2 can...

Concrete CMS: Stored XSS on express entries

Download Concrete5 8.5.2 and install it 2. Log into your Concrete5 instance as admin 3. Go to Dashboard System settings Express entities /index.php/dashboard/system/express/entities 4. Сlick on the Create button 5. in the field Name paste the following text: alert1 6. Go to tab View Objects...