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prionPRIOn knowledge basePRION:CVE-2021-27927
HistoryMar 03, 2021 - 5:15 p.m.

Cross site request forgery (csrf)

2021-03-0317:15:00
PRIOn knowledge base
www.prio-n.com
10

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

30.9%

In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method. An attacker doesn’t have to know Zabbix user login credentials, but has to know the correct Zabbix URL and contact information of an existing user with sufficient privileges.

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

30.9%