Content Mask vulnerabilities

The Content Mask WordPress plugin before version 1.8.5.6 does not properly sanitise and escape content submitted with a post before outputting it in the pages it generates. This allows users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks against any user viewing or previewing the affected page. The option to restrict its use by role does not prevent this.

The Content Mask WordPress plugin before version 1.8.5.5 does not check the capability required to publish the post type being created, allowing users with a role as low as Contributor to publish posts and pages without holding the publish capability.

The Content Mask plugin by Alex has a Server-Side Request Forgery (SSRF) vulnerability that allows making server-side requests. Affects versions up to and including 1.8.5.2.