{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-08-05T14:26:09.570","vulnerabilities":[{"cve":{"id":"CVE-2022-23131","sourceIdentifier":"security@zabbix.com","published":"2022-01-13T16:15:08.053","lastModified":"2026-06-17T04:29:34.147","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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)."},{"lang":"es","value":"En el caso de las instancias en las que la autenticación SAML SSO está habilitada (no por defecto), los datos de la sesión pueden ser modificados por un actor malicioso, ya que un login de usuario almacenado en la sesión no fue verificado. Un actor malicioso no autenticado puede explotar este problema para escalar privilegios y conseguir acceso de administrador a Zabbix Frontend. Para llevar a cabo el ataque, es requerido que la autenticación SAML esté habilitada y que el actor conozca el nombre de usuario de Zabbix (o que use la cuenta de invitado, que está deshabilitada por defecto)"}],"affected":[{"source":"security@zabbix.com","affectedData":[{"vendor":"Zabbix","product":"Frontend","versions":[{"version":"5.4.0 - 5.4.8","status":"affected"},{"version":"5.4.9","lessThan":"5.4.9*","versionType":"custom","status":"unaffected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@zabbix.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":5.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:H/Au:N/C:P/I:P/A:P","baseScore":5.1,"accessVector":"NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":4.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-01-29T17:20:59.458483Z","id":"CVE-2022-23131","options":[{"exploitation":"active"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"cisaExploitAdd":"2022-02-22","cisaActionDue":"2022-03-08","cisaRequiredAction":"Apply updates per vendor instructions.","cisaVulnerabilityName":"Zabbix Frontend Authentication Bypass Vulnerability","weaknesses":[{"source":"security@zabbix.com","type":"Secondary","description":[{"lang":"en","value":"CWE-290"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-290"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.0","versionEndIncluding":"5.4.8","matchCriteriaId":"19429F9A-8623-4BA9-984B-4982418C21CD"},{"vulnerable":true,"criteria":"cpe:2.3:a:zabbix:zabbix:6.0.0:alpha1:*:*:*:*:*:*","matchCriteriaId":"0DC67B03-AF43-45C9-8EAC-D60DA5887712"}]}]}],"references":[{"url":"https://support.zabbix.com/browse/ZBX-20350","source":"security@zabbix.com","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://support.zabbix.com/browse/ZBX-20350","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}]}}]}