Description
The authentication mechanism in Perfex CRM before 3.3.1 allows attackers to bypass login credentials due to insufficient server-side validation. By sending empty username and password parameters in the login request, an attacker can gain unauthorized access to user accounts, including administrative accounts, without providing valid credentials.
References1
Metrics
- CVSS 3.1
-
7.3
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - EPSS — exploit probability
- 0% percentile: 21 · as of 9 November 2026
- CWE
- CWE-289
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.