An issue was discovered in YzmCMS 5.2.0. It has XSS via the bottom text field to the admin/system_manage/save.html URI, related to the site_code parameter.
An issue was discovered in YzmCMS v5.2. It has XSS via a search/index/archives/pubtime/ query string, as demonstrated by the search/index/archives/pubtime/1526387722/page/1.html URI. NOTE: this does not obtain a user's cookie.
The forgotten-password feature in index.php/member/reset/reset_email.html in YzmCMS v3.2 through v3.7 has a Response Discrepancy Information Exposure issue and an unexpectedly long lifetime for a verification code, which makes it easier for remote attackers to hijack accounts via a brute-force approach.