The TripAdvisor app with the versions before TAMobileApp-24.6.4 pre-installed in some Huawei mobile phones have an arbitrary URL loading vulnerability due to insufficient input validation and improper configuration. An attacker may exploit this vulnerability to invoke TripAdvisor to load a specific URL and execute malicious code contained in the URL.

The TripAdvisor app 6.6 for iOS sends cleartext credentials, which allows remote attackers to obtain sensitive information by sniffing the network.