{"schema":"threatline.record/2","record":{"id":"CVE-2022-23131","aliases":[],"summary":"Zabbix Frontend Authentication Bypass Vulnerability","details":"Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML.","categories":["Unclassified"],"product":"Frontend","vendor":"Zabbix","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2022-23131","source_modified_at":"2025-10-21T23:15:49.275Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Frontend","vendor":"Zabbix","versions":[{"status":"affected","version":"5.4.0 - 5.4.8"},{"lessThan":"5.4.9*","status":"unaffected","version":"5.4.9","versionType":"custom"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.1,"severity":"Critical","kev":{"listed":true,"date_added":"2022-02-22","due_date":"2022-03-08","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.95683,"percentile":0.99874,"score_date":"2026-10-23"},"published_at":"2022-01-13T15:50:39.137Z","modified_at":"2025-10-21T23:15:49.275Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2022-23131","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:15:49.275Z"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-23131.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2022-23131","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Nuclei","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23131","source":"CISA KEV"},{"source":"CVE List","url":"https://support.zabbix.com/browse/ZBX-20350","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-01-29T17:20:59.458483Z"},"exploits":[{"source":"Nuclei","kind":"Scanner template","name":"Zabbix - SAML SSO Authentication Bypass","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-23131.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2025-10-21T23:15:49.275Z","content_hash":"d5b42df396fdf7fb66c03c64e213d0816600b264abd00a739de23a24eae1d043"}}