WACRM prior to commit 73041bf contain an authorization bypass vulnerability in the automation engine that allows authenticated attackers to access and modify contacts belonging to other tenants by supplying an arbitrary caller-controlled contact_id in the POST request body without tenant ownership verification. Attackers can exploit the service-role client that bypasses row-level security to modify victim contact fields including name, email, and company across tenant boundaries using only a known contact UUID.
https://www.vulncheck.com/advisories/wacrm-authorization-bypass-via-automation-engine-endpoint
https://github.com/ArnasDon/wacrm/pull/194
https://github.com/ArnasDon/wacrm/commit/73041bfa6420f5e1ecbfa1dd4fa847d8529320f5
Published: 2026-06-08
Updated: 2026-06-09
Base Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:S/C:P/I:C/A:N
Severity: Medium
Base Score: 7.1
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N
Severity: High
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N
Severity: Medium
EPSS: 0.00025