CVE-2026-8347

CVE-2026-8347 – Insecure Direct Object Reference IDOR in Concrete CMS Overview CVE-2026-8347 is an Insecure Direct Object Reference IDOR vulnerability affecting Concrete CMS versions 9.5.0 and earlier. The issue exists in the Express Association Reorder functionality due to insufficient...

CVE-2026-81898

In Concrete CMS below version 9.5.3, the Address attribute's country-less text formatter skipped HTML-escaping, enabling stored XSS in Express association views. A user able to submit an Address attribute could execute script in the session of any dashboard user who opened the affected entry. The...

CVE-2026-81898 Concrete CMS below version 9.5.3 is vulnerable to Stored XSS via country-less Address attribute in Express association views

In Concrete CMS below version 9.5.3, the Address attribute's country-less text formatter skipped HTML-escaping, enabling stored XSS in Express association views. A user able to submit an Address attribute could execute script in the session of any dashboard user who opened the affected entry. The...

CVE-2026-81898 Concrete CMS below version 9.5.3 is vulnerable to Stored XSS via country-less Address attribute in Express association views

In Concrete CMS below version 9.5.3, the Address attribute's country-less text formatter skipped HTML-escaping, enabling stored XSS in Express association views. A user able to submit an Address attribute could execute script in the session of any dashboard user who opened the affected entry. The...

CVE-2026-81898

In Concrete CMS below version 9.5.3 , the Address attribute's country-less text formatter skipped HTML-escaping, enabling a stored XSS in Express association views. A low-privilege user able to submit an Address attribute with a blank (non-required) country field could inject script that executes...

EUVD-2026-78900

In Concrete CMS below version 9.5.3, the Address attribute's country-less text formatter skipped HTML-escaping, enabling stored XSS in Express association views. A user able to submit an Address attribute could execute script in the session of any dashboard user who opened the affected entry. The...

PT-2026-92180

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.3 Description Stored Cross-Site Scripting XSS is possible in Express association views due to the Address attribute's country-less text formatter skipping HTML-escaping. This occurs when a non-required Addres...

CVE-2026-81898: Improper Neutralization of Input During Web Page Generation

In Concrete CMS below version 9.5.3, the Address attribute's country-less text formatter skipped HTML-escaping, enabling stored XSS in Express association views. A user able to submit an Address attribute could execute script in the session of any dashboard user who opened the affected entry. The...

CVE-2026-8347 — Updated!

CVE-2026-8347 – Insecure Direct Object Reference IDOR in Concrete CMS Overview CVE-2026-8347 is an Insecure Direct Object Reference IDOR vulnerability affecting Concrete CMS versions 9.5.0 and earlier. The issue exists in the Express Association Reorder functionality due to insufficient...

CVE-2026-8347

The CVE-2026-8347 entry affects Concrete CMS 9.5.0 and earlier, where the Express association Reorder dialog is vulnerable to IDOR and wrong-authorization-level handling, enabling cross-entity state tampering under view-only permissions. The issue is triggered by reliance on Express entity orderi...

CVE-2026-8347 Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in Express association Reorder dialog

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

CVE-2026-8347: Authorization Bypass Through User-Controlled Key

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity...

CVE-2026-8415 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/express/association/reorder

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/dialog/express/association/reorder. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8415 Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/express/association/reorder

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/dialog/express/association/reorder. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...

CVE-2026-8415: Cross-Site Request Forgery (CSRF)

Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery CSRF at concrete/controllers/dialog/express/association/reorder. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N...