CVE-2022-23131

CRITICALNVD 9.19.8▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-02-22), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.1
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 96%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 actor has to know the username of Zabbix user (or use the guest account, which is disabled by default).

CVSS v3
9.1
EG Score
9.8(high)
EPSS
99.9%
KEV
⚠ Exploited

Published

January 13, 2022

Last Modified

October 30, 2025

Advisory Details (2)

Auto-updated Jun 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131
generic

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https://support.zabbix.com/browse/ZBX-20350

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 46× in last 7d / 205× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 369 total refreshes for this CVE.

  1. 2026-07-22 19:40 UTCCISA KEV update
  2. 2026-07-22 19:13 UTCGHSA enrichment
  3. 2026-07-22 15:22 UTCGHSA enrichment
  4. 2026-07-22 11:29 UTCGHSA enrichment
  5. 2026-07-22 07:38 UTCGHSA enrichment
  6. 2026-07-22 03:46 UTCGHSA enrichment
  7. 2026-07-21 23:53 UTCGHSA enrichment
  8. 2026-07-21 19:46 UTCGHSA enrichment
  9. 2026-07-21 15:54 UTCGHSA enrichment
  10. 2026-07-21 14:37 UTCCISA KEV update
  11. 2026-07-21 12:03 UTCGHSA enrichment
  12. 2026-07-21 08:09 UTCGHSA enrichment
  13. 2026-07-21 04:18 UTCGHSA enrichment
  14. 2026-07-21 00:25 UTCGHSA enrichment
  15. 2026-07-20 20:34 UTCGHSA enrichment
  16. 2026-07-20 16:43 UTCGHSA enrichment
  17. 2026-07-20 12:52 UTCGHSA enrichment
  18. 2026-07-20 09:01 UTCGHSA enrichment
  19. 2026-07-20 05:10 UTCGHSA enrichment
  20. 2026-07-19 21:27 UTCGHSA enrichment
  21. 2026-07-19 17:36 UTCGHSA enrichment
  22. 2026-07-19 13:45 UTCGHSA enrichment
  23. 2026-07-19 09:54 UTCGHSA enrichment
  24. 2026-07-19 06:02 UTCGHSA enrichment
  25. 2026-07-19 02:11 UTCGHSA enrichment
Show 75 more
  1. 2026-07-18 22:20 UTCGHSA enrichment
  2. 2026-07-18 18:27 UTCGHSA enrichment
  3. 2026-07-18 14:36 UTCGHSA enrichment
  4. 2026-07-18 10:44 UTCGHSA enrichment
  5. 2026-07-18 06:53 UTCGHSA enrichment
  6. 2026-07-18 03:01 UTCGHSA enrichment
  7. 2026-07-17 23:10 UTCGHSA enrichment
  8. 2026-07-17 19:19 UTCGHSA enrichment
  9. 2026-07-17 15:28 UTCGHSA enrichment
  10. 2026-07-17 11:36 UTCGHSA enrichment
  11. 2026-07-17 07:45 UTCEG score recompute
  12. 2026-07-17 07:45 UTCGHSA enrichment
  13. 2026-07-17 03:54 UTCGHSA enrichment
  14. 2026-07-17 00:03 UTCGHSA enrichment
  15. 2026-07-16 20:12 UTCGHSA enrichment
  16. 2026-07-16 17:04 UTCCISA KEV update
  17. 2026-07-16 16:20 UTCGHSA enrichment
  18. 2026-07-16 12:28 UTCGHSA enrichment
  19. 2026-07-16 08:37 UTCGHSA enrichment
  20. 2026-07-16 04:46 UTCGHSA enrichment
  21. 2026-07-16 00:55 UTCGHSA enrichment
  22. 2026-07-15 21:04 UTCGHSA enrichment
  23. 2026-07-15 17:13 UTCGHSA enrichment
  24. 2026-07-15 16:56 UTCEPSS rescore
  25. 2026-07-15 16:56 UTCEPSS rescore
  26. 2026-07-15 16:49 UTCCISA KEV update
  27. 2026-07-15 15:04 UTCCISA KEV update
  28. 2026-07-15 13:21 UTCGHSA enrichment
  29. 2026-07-15 09:29 UTCGHSA enrichment
  30. 2026-07-15 05:38 UTCGHSA enrichment
  31. 2026-07-15 01:47 UTCGHSA enrichment
  32. 2026-07-14 21:56 UTCGHSA enrichment
  33. 2026-07-14 18:05 UTCCISA KEV update
  34. 2026-07-14 18:05 UTCGHSA enrichment
  35. 2026-07-14 14:14 UTCGHSA enrichment
  36. 2026-07-14 10:23 UTCGHSA enrichment
  37. 2026-07-14 06:32 UTCGHSA enrichment
  38. 2026-07-14 02:40 UTCGHSA enrichment
  39. 2026-07-13 22:48 UTCGHSA enrichment
  40. 2026-07-13 18:57 UTCGHSA enrichment
  41. 2026-07-13 17:07 UTCCISA KEV update
  42. 2026-07-13 15:05 UTCGHSA enrichment
  43. 2026-07-13 11:13 UTCGHSA enrichment
  44. 2026-07-13 07:21 UTCGHSA enrichment
  45. 2026-07-13 03:29 UTCGHSA enrichment
  46. 2026-07-12 23:38 UTCGHSA enrichment
  47. 2026-07-12 19:47 UTCGHSA enrichment
  48. 2026-07-12 15:56 UTCGHSA enrichment
  49. 2026-07-12 12:05 UTCGHSA enrichment
  50. 2026-07-12 08:13 UTCGHSA enrichment
  51. 2026-07-12 04:22 UTCGHSA enrichment
  52. 2026-07-12 00:31 UTCGHSA enrichment
  53. 2026-07-11 20:39 UTCGHSA enrichment
  54. 2026-07-11 16:48 UTCGHSA enrichment
  55. 2026-07-11 12:56 UTCGHSA enrichment
  56. 2026-07-11 09:04 UTCGHSA enrichment
  57. 2026-07-11 05:12 UTCGHSA enrichment
  58. 2026-07-11 01:21 UTCGHSA enrichment
  59. 2026-07-10 21:30 UTCGHSA enrichment
  60. 2026-07-10 17:52 UTCCISA KEV update
  61. 2026-07-10 17:39 UTCGHSA enrichment
  62. 2026-07-10 13:48 UTCGHSA enrichment
  63. 2026-07-10 09:55 UTCGHSA enrichment
  64. 2026-07-10 06:03 UTCGHSA enrichment
  65. 2026-07-10 02:12 UTCGHSA enrichment
  66. 2026-07-09 22:21 UTCGHSA enrichment
  67. 2026-07-09 18:30 UTCGHSA enrichment
  68. 2026-07-09 14:38 UTCGHSA enrichment
  69. 2026-07-09 10:46 UTCGHSA enrichment
  70. 2026-07-09 06:55 UTCGHSA enrichment
  71. 2026-07-09 03:04 UTCGHSA enrichment
  72. 2026-07-08 23:12 UTCGHSA enrichment
  73. 2026-07-08 19:20 UTCGHSA enrichment
  74. 2026-07-08 15:28 UTCGHSA enrichment
  75. 2026-07-08 11:37 UTCGHSA enrichment

Publicly available exploits

(10 references)

Working exploit code is in the public domain (10 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCdavidzzo23/CVE-2022-23131
    First seen Oct 25, 2024

    Zabbix Frontend Authentication Bypass Vulnerability

    Open source ↗
  • GitHub PoCfork-bombed/CVE-2022-23131
    First seen Sep 18, 2024

    CVE-2022-23131 Zabbix Server SAML authentication exploit

    Open source ↗
  • GitHub PoCVulnmachines/Zabbix-CVE-2022-23131
    First seen Sep 2, 2022

    Zabbix-SAML-Bypass: CVE-2022-23131

    Open source ↗
  • GitHub PoCSCAMagic/CVE-2022-23131poc-exp-zabbix-
    First seen Jul 22, 2022

    CVE-2022-23131漏洞批量检测与利用脚本

    Open source ↗
  • GitHub PoCKazaf6s/CVE-2022-23131
    First seen Apr 2, 2022

    CVE-2022-23131漏洞利用工具开箱即用。

    Open source ↗
  • GitHub PoCkh4sh3i/CVE-2022-23131
    First seen Feb 28, 2022

    Zabbix - SAML SSO Authentication Bypass

    Open source ↗
  • GitHub PoCpykiller/CVE-2022-23131
    First seen Feb 24, 2022
    Open source ↗
  • GitHub PoCrandom-robbie/cve-2022-23131-exp
    First seen Feb 23, 2022

    Zabbix SSO Bypass

    Open source ↗
  • GitHub PoCL0ading-x/cve-2022-23131
    First seen Feb 22, 2022

    cve-2022-23131

    Open source ↗
  • GitHub PoC1mxml/CVE-2022-23131
    First seen Feb 18, 2022
    Open source ↗

Frequently asked(6)

What is CVE-2022-23131?
CVE-2022-23131 is a critical vulnerability published on January 13, 2022. 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…
When was CVE-2022-23131 disclosed?
CVE-2022-23131 was first published in the National Vulnerability Database on January 13, 2022, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-23131 actively exploited?
Yes. CISA added CVE-2022-23131 to the Known Exploited Vulnerabilities catalog on February 22, 2022, affecting Zabbix Frontend. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-23131?
CVE-2022-23131 has a CVSS v3 base score of 9.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
Which products are affected by CVE-2022-23131?
CVE-2022-23131 affects Zabbix Frontend. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-23131?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-23131, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-23131

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