admin/app/mediamanager in Schlix CMS 2.1.8-7 allows Authenticated Unrestricted File Upload, leading to remote code execution. NOTE: "While inadvertently allowing a PHP file to be uploaded via Media Manager was an oversight, it still requires an admin permission. We think it's pretty rare for an administrator to exploit a bug on his/her own site to own his/her own site.

Insecure Permission vulnerability in Schlix Web Inc SCHLIX CMS 2.2.7-2 allows attacker to upload arbitrary files and execute arbitrary code via the tristao parameter. NOTE: this is disputed by the vendor because an admin is intentionally allowed to upload new executable PHP code, such as a theme that was obtained from a trusted source or was developed for their own website. Only an admin can upload such code, not someone else in an "attacker" role.

An arbitrary file upload vulnerability in Schlix CMS v2.2.8-1, allows remote authenticated attackers to execute arbitrary code and obtain sensitive information via a crafted .phtml file.

Schlix CMS before v2.2.9-5 is vulnerable to Cross Site Scripting (XSS). Due to lack of javascript sanitization in the login form, incorrect login attempts in logs are triggered as XSS in the admin panel.