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CVE-2022-23131

97
FAUCET Score

CVE-2022-23131 is a critical authentication bypass vulnerability affecting Zabbix Frontend when SAML SSO is enabled. An unauthenticated attacker can exploit this flaw by manipulating session data, allowing them to escalate privileges and gain administrative access. With a CVSS score of 9.8 (CRITICAL) and an EPSS score indicating high exploitability, this vulnerability poses a severe risk. It is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV catalog and media coverage, and has garnered significant community discussion and available Nuclei templates for detection.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.4.0, <= 5.4.8CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:6.0.0:alpha1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
95.68%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Feb 22, 2022
Nuclei: CVE-2022-23131 · Feb 20, 2022
This CVE's current EPSS score of 0.9568 is in the 99th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
support.zabbix.com / browse/ZBX-20350
Issue TrackingPatchVendor Advisory