dayrui FineCms 5.0.9 has Cross Site Scripting (XSS) in admin/Login.php via a payload in the username field that does not begin with a '<' character.

dayrui FineCms 5.0.9 has SQL Injection via the num parameter in an action=related or action=tags request to libraries/Template.php.

dayrui FineCms 5.0.9 has SQL Injection via the catid parameter in an action=related request to libraries/Template.php.

dayrui FineCms 5.0.9 has SQL Injection via the field parameter in an action=module, action=member, action=form, or action=related request to libraries/Template.php.

dayrui FineCms 5.0.9 has remote PHP code execution via the param parameter in an action=cache request to libraries/Template.php, aka Eval Injection.

dayrui FineCms 5.0.9 has URL Redirector Abuse via the url parameter in a sync action, related to controllers/Weixin.php.

dayrui FineCms through 5.0.10 has Cross Site Scripting (XSS) in controllers/api.php via the function parameter in a c=api&m=data2 request.

dayrui FineCms 5.2.0 before 2017.11.16 has Cross Site Scripting (XSS) in core/M_Controller.php via the DR_URI field.

v5/config/system.php in dayrui FineCms 5.2.0 has a default SYS_KEY value and does not require key regeneration for each installation, which allows remote attackers to upload arbitrary .php files via a member api swfupload action to index.php.

controllers/admin/Linkage.php in dayrui FineCms 5.3.0 has Cross Site Scripting (XSS) via the id or lid parameter in a c=linkage,m=import request to admin.php, because the xss_clean protection mechanism is defeated by crafted input that lacks a '<' or '>' character.

controllers/member/Api.php in dayrui FineCms 5.2.0 has SQL Injection: a request with s=member,c=api,m=checktitle, and the parameter 'module' with a SQL statement, lacks effective filtering.

Cross-site request forgery (CSRF) vulnerability in /admin.php?c=member&m=edit&uid=1 in dayrui FineCms 5.4 allows remote attackers to change the administrator's password.