{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-22559", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-01-07T15:39:03.440Z", "datePublished": "2026-03-24T19:05:40.745Z", "dateUpdated": "2026-03-24T20:20:08.516Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "An Improper Input Validation vulnerability in UniFi Network Server may allow unauthorized access to an account if the account owner is socially engineered into clicking a malicious link.\r\n\r\n\r\nAffected Products:\r\nUniFi Network Server (Version 10.1.85 and earlier) \r\n\r\n\r\nMitigation:\r\nUpdate UniFi Network Server to Version 10.1.89 or later."}], "affected": [{"defaultStatus": "unaffected", "vendor": "Ubiquiti Inc", "product": "UniFi Network Server", "versions": [{"version": "10.1.89", "status": "affected", "lessThan": "10.1.89", "versionType": "semver"}]}], "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-062-062/c29719c0-405e-4d4a-8f26-e343e99f931b"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-03-24T19:05:40.745Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-20", "lang": "en", "description": "CWE-20 Improper Input Validation"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-24T20:19:52.263628Z", "id": "CVE-2026-22559", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-24T20:20:08.516Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "An Improper Input Validation vulnerability in UniFi Network Server may allow unauthorized access to an account if the account owner is socially engineered into clicking a malicious link.\r\n\r\n\r\nAffected Products:\r\nUniFi Network Server (Version 10.1.85 and earlier) \r\n\r\n\r\nMitigation:\r\nUpdate UniFi Network Server to Version 10.1.89 or later."}, {"lang": "es", "value": "Una vulnerabilidad de validaci\u00f3n de entrada incorrecta en UniFi Network Server puede permitir el acceso no autorizado a una cuenta si el propietario de la cuenta es v\u00edctima de ingenier\u00eda social para hacer clic en un enlace malicioso.\n\nProductos afectados:\nUniFi Network Server (Versi\u00f3n 10.1.85 y anteriores)\n\nMitigaci\u00f3n:\nActualice UniFi Network Server a la Versi\u00f3n 10.1.89 o posterior."}], "id": "CVE-2026-22559", "lastModified": "2026-04-30T16:14:21.333", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "support@hackerone.com", "type": "Secondary"}]}, "published": "2026-03-24T20:16:26.253", "references": [{"source": "support@hackerone.com", "url": "https://community.ui.com/releases/Security-Advisory-Bulletin-062-062/c29719c0-405e-4d4a-8f26-e343e99f931b"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[10.1.89,10.1.89)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "inferred", "scores": [{"score": 100.0, "source": "inferred"}]}, "product": "unifi_network_server", "vendor": "ubiquiti"}], "analysis": {"en": {"generated_at": "2026-03-24T22:21:47.990003+00:00", "value": {"mitigation_remediation": ["Update your UniFi Network Server to version 10.1.89 or later."], "summary": {"action": "Patch Now", "impact": "Unauthorized Account Access"}, "threat_synthesis": {"affected_systems": "Ubiquiti\u2019s UniFi Network Server, versions 10.1.85 and earlier, is affected. No newer releases are impacted.", "description_and_impact": "In UniFi Network Server, a missing validation on input allows a malicious link to grant access to an account. The result is unauthorized account takeover, providing attackers control over the network. This is an input validation weakness, CWE\u201120.", "risk_and_exploitability": "The CVSS score of 8.8 indicates high severity. Exploitation requires the user to click a crafted URL, which is inferred from the description. No EPSS data is available, and the vulnerability is not listed in KEV; nevertheless, the high score signals a serious risk to confidentiality and integrity for systems running the affected software."}}}}, "created": "2026-03-25T11:46:22.937082+00:00", "title": "Improper Input Validation Allows Unauthenticated Access via Malicious Link in UniFi Network Server", "updated": "2026-03-25T20:57:48.406104+00:00", "vendors": ["ubiquiti", "ubiquiti$PRODUCT$unifi_network_server"]}