Guns through 8.3.5 contains an information disclosure vulnerability in SysUserController where /sysUser/detail and /sysUser/page endpoints omit requiredPermission configuration, causing the permission interceptor to skip RBAC validation for authenticated users. Attackers with any valid login token can retrieve sensitive user information including account names, real names, email addresses, phone numbers, last login IPs, and role assignments for all users in the system.
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
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/stylefeng/Guns
disclosure@vulncheck.com
https://github.com/stylefeng/Guns/blob/2a12947733945d5c06197d99ecaa77d7f2b0aeba…
disclosure@vulncheck.com
https://github.com/stylefeng/Guns/issues/118
disclosure@vulncheck.com
https://repo1.maven.org/maven2/com/javaguns/roses/system-business-hr/8.3.5/syst…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/guns-through-8.3.5-information-disclosure-…
disclosure@vulncheck.com