The password reset funcionality is vulnerable to unauthorized account modification due to improper validation of the user_id parameter. An attacker can manipulate this predictable numeric identifier to reset passwords for arbitrary users without proving account ownership.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0