Description
Cross-site scripting (XSS) vulnerability in /admin/moduleinterface.php in CMS Made Simple 2.1.6 allows remote authenticated users to inject arbitrary web script or HTML via the m1_description parameter (aka 'Design Manager > Categories > Category Description').
Remediation
Update to CMS Made Simple 2.2 or later.
References
Related Vulnerabilities
WordPress Plugin Job Manager Cross-Site Scripting (0.7.25)
WordPress Plugin Google Maps Cross-Site Scripting (2.1.3)
WordPress Plugin JSON Content Importer Cross-Site Scripting (1.3.15)
WordPress Plugin Mailtree Log Mail Cross-Site Scripting (1.0.0)
WordPress Plugin Photoswipe Masonry Gallery Cross-Site Scripting (1.2.14)