Evolution CMS 1.4.x allows XSS via the manager/ search parameter.

MODX Revolution v2.6.5-pl allows stored XSS via a Create New Media Source action.

MODX Revolution version <=2.6.4 contains a Incorrect Access Control vulnerability in Filtering user parameters before passing them into phpthumb class that can result in Creating file with custom a filename and content. This attack appear to be exploitable via Web request. This vulnerability appears to have been fixed in commit 06bc94257408f6a575de20ddb955aca505ef6e68.

MODX Revolution version <=2.6.4 contains a Directory Traversal vulnerability in /core/model/modx/modmanagerrequest.class.php that can result in remove files. This attack appear to be exploitable via web request via security/login processor. This vulnerability appears to have been fixed in pull 13980.

MODX Revolution 2.6.3 has XSS.

A stored web content injection vulnerability (WCI, a.k.a XSS) is present in MODX Revolution CMS version 2.5.6 and earlier. An authenticated user with permissions to edit users can save malicious JavaScript as a User Group name and potentially take control over victims' accounts. This can lead to an escalation of privileges providing complete administrative control over the CMS.

Cross-site scripting (XSS) vulnerability in login-fsp.html in MODX Revolution before 1.9.1 allows remote attackers to inject arbitrary web script or HTML via the QUERY_STRING.

In MODX Revolution 2.5.7, the "key" and "name" parameters in the System Settings module are vulnerable to XSS. A malicious payload sent to connectors/index.php will be triggered by every user, when they visit this module.

MODX Revolution version 2.x - 2.5.6 is vulnerable to blind SQL injection caused by improper sanitization by the escape method resulting in authenticated user accessing database and possibly escalating privileges.

In MODX Revolution before 2.5.7, a user with resource edit permissions can inject an XSS payload into the title of any post via the pagetitle parameter to connectors/index.php.