TwoNav 2.1.13 contains an SSRF vulnerability via the url paramater to index.php?c=api&method=read_data&type=connectivity_test (which reaches /system/api.php).
https://github.com/tznb1/TwoNav/issues/9#issuecomment-2022194939
https://github.com/tznb1/TwoNav/compare/v2.1.13-20240321...v2.1.14-20240419