UpHeron
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Servers and applications

CVE-2022-23131

In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 22 Feb 2022.

Severity
Critical 9.8
Published
13 Jan 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
ZabbixServers and applications · cpe:a:zabbix:zabbix
  • From 5.4.0 up to 5.4.8
  • Version 6.0.0-alpha1

Known exploited

CISA name
Zabbix Frontend Authentication Bypass Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
8 Mar 2022
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-23131
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-23131