Frappe HR (hrms) before 16.11.0, including all 14.x and 15.x releases through 15.64.3, contains a missing authorization vulnerability in the whitelisted expire_allocation method that allows authenticated users to expire any leave allocation. Attackers without HR roles can name another employee's Leave Allocation in a POST request to zero its allocated leaves and wipe that employee's remaining leave balance.
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
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/frappe/hrms
disclosure@vulncheck.com
https://github.com/frappe/hrms/blob/0a54d2c7b8b6043e2705b6f557b6ed65260670dd/hr…
disclosure@vulncheck.com
https://github.com/frappe/hrms/commit/6ab7a50347367413b78ad5bd5d9e4b8c6653c81f
disclosure@vulncheck.com
https://github.com/frappe/hrms/releases/tag/v16.11.0
disclosure@vulncheck.com
https://hackmd.io/@haind03/frappe-hrms-expire-allocation-missing-authorization-…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/frappe-hr-hrms-before-16.11.0-missing-auth…
disclosure@vulncheck.com