CMS Made Simple before 2.2.15 allows XSS via the m1_mod parameter in a ModuleManager local_uninstall action to admin/moduleinterface.php.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22842
Reference (s):
- http://dev.cmsmadesimple.org/bug/view/12291