Concrete CMS (previously concrete5) versions 8.5.12 and below, and 9.0 through 9.1.3 is vulnerable to possible Auth bypass in the jobs section.

Concrete CMS (previously concrete5) versions 8.5.12 and below, and 9.0 through 9.1.3 does not have Secure and HTTP only attributes set for ccmPoll cookies.

Concrete CMS (previously concrete5) in versions 9.0 through 9.1.3 is vulnerable to Stored XSS via a container name.

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 is vulnerable to XSS in the text input field since the result dashboard page output is not sanitized. The Concrete CMS security team has ranked this 4.2 with CVSS v3.1 vector AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N Thanks @_akbar_jafarli_ for reporting. Remediate by updating to Concrete CMS 8.5.10 and Concrete CMS 9.1.3.

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 was not properly sanitized. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 inadvertently disclose server-side sensitive information (secrets in environment variables and server information) when Debug Mode is left on in production.

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 does not issue a new session ID upon successful OAuth authentication. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.

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 icons since the Microsoft application tile color is not sanitized. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 is vulnerable to XXE based DNS requests leading to IP disclosure.

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 did not use strict comparison for the legacy_salt so that limited authentication bypass could occur if using this functionality. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.