In SapphireIMS 4097_1, a guest user is able to change the password of an administrative user by utilizing an Insecure Direct Object Reference (IDOR) in the "Account Password Reset" functionality.
https://vuln.shellcoder.party/tags/sapphireims/
https://vuln.shellcoder.party/2020/07/18/cve-2017-16631-sapphireims-idor-on-password-reset/