Hush Line OTP issue

Hush Line is a free and open-source, anonymous-tip-line-as-a-service for organizations or individuals. The TOTP authentication flow has multiple issues that weakens its one-time nature. Specifically, the lack of 2FA for changing security settings allows attacker with CSRF or XSS primitives to change such settings without user interaction and credentials are required. This vulnerability has been patched in version 0.10.