Kaifa Technology WebITR is an online attendance system, it has a vulnerability in using hard-coded encryption key. An unauthenticated remote attacker can generate valid token parameter and exploit this vulnerability to access system with arbitrary user account, including administrator’s account, to execute login account’s permissions, and obtain relevant information.

Kaifa Technology WebITR is an online attendance system. A remote attacker with regular user privilege can obtain partial sensitive system information from error message.

Kaifa Technology WebITR is an online attendance system, its file uploading function does not restrict upload of file with dangerous type. A remote attacker with regular user privilege can exploit this vulnerability to upload arbitrary files to perform arbitrary command or disrupt service.

Kaifa Technology WebITR is an online attendance system, it has insufficient validation for user input within a special function. A remote attacker with regular user privilege can exploit this vulnerability to inject arbitrary SQL commands to read database.