An issue was discovered in PONTON X/P Messenger before 3.11.2. Several functions are vulnerable to reflected XSS, as demonstrated by private/index.jsp?partners/ShowNonLocalPartners.do?localID= or private/index.jsp or private/index.jsp?database/databaseTab.jsp or private/index.jsp?activation/activationMainTab.jsp or private/index.jsp?communication/serverTab.jsp or private/index.jsp?emailNotification/notificationTab.jsp.

An issue was discovered in PONTON X/P Messenger before 3.11.2. The navigation tree that is shown on the left side of every page of the web application is vulnerable to XSS: it allows injection of JavaScript into its nodes. Creating such nodes is only possible for users who have the role Configuration Administrator or Administrator.

An issue was discovered in PONTON X/P Messenger before 3.11.2. Due to path traversal in private/SchemaSetUpload.do for uploaded ZIP files, an executable script can be uploaded by web application administrators, giving the attacker remote code execution on the underlying server via an imgs/*.jsp URI.

An issue was discovered in PONTON X/P Messenger before 3.11.2. Anti-CSRF tokens are globally valid, making the web application vulnerable to a weakened version of CSRF, where an arbitrary token of a low-privileged user (such as operator) can be used to confirm actions of higher-privileged ones (such as xpadmin).