An issue was discovered in Znuny before 7.1.4. Permissions are not checked properly when using the Generic Interface to update ticket metadata.

An Eval Injection issue was discovered in Znuny through 7.1.3. A user with write access to the configuration file can use this to execute a command executed by the user running the backup.pl script.

An issue was discovered in Znuny before 7.1.5. When generating a support bundle, not all passwords are masked.

Znuny before LTS 6.5.1 through 6.5.10 and 7.0.1 through 7.0.16 allows XSS. JavaScript code in the short description of the SLA field in Activity Dialogues is executed.

Znuny before LTS 6.5.1 through 6.5.10 and 7.0.1 through 7.0.16 allows DoS/ReDos via email. Parsing the content of emails where HTML code is copied from Microsoft Word could lead to high CPU usage and block the parsing process.