Frappe CRM app before 1.89.1 contains a missing authorization vulnerability that allows authenticated low-privileged users to read CRM Lead records they are not permitted to access by querying the get_contact_by_phone_number API, which performs raw database queries without invoking the permission system. Attackers can supply a known phone number to the crm.integrations.api.get_contact_by_phone_number endpoint to retrieve full lead details otherwise blocked by standard API and UI access controls, resulting in unauthorized disclosure of sensitive CRM data.
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