youlai-boot through 2.21.1 contains a missing authorization vulnerability that allows any authenticated user to enable or disable accounts because the updateUserStatus handler lacks a @PreAuthorize check. Attackers can send PATCH requests to /api/v1/users/{userId}/status to disable root or admin accounts, locking administrators out, or re-enable accounts an administrator has disabled.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/youlaitech/youlai-boot/blob/v2.21.1/src/main/java/com/youlai…
disclosure@vulncheck.com
https://github.com/youlaitech/youlai-boot/commit/86a9b3e212ff5a5537b0c7050c7802…
disclosure@vulncheck.com
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/youlai-boot-role-menu-assignment-and-…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/youlai-boot-through-2.21.1-missing-authori…
disclosure@vulncheck.com