{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27016","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-02-17T03:08:23.490Z","datePublished":"2026-02-20T01:34:11.241Z","dateUpdated":"2026-02-20T15:34:34.942Z"},"containers":{"cna":{"title":"LibreNMS has Stored XSS in Custom OID - unit parameter missing strip_tags()","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/librenms/librenms/security/advisories/GHSA-fqx6-693c-f55g","tags":["x_refsource_CONFIRM"],"url":"https://github.com/librenms/librenms/security/advisories/GHSA-fqx6-693c-f55g"},{"name":"https://github.com/librenms/librenms/pull/19040","tags":["x_refsource_MISC"],"url":"https://github.com/librenms/librenms/pull/19040"},{"name":"https://github.com/librenms/librenms/commit/3bea263e02441690c01dea7fa3fe6ffec94af335","tags":["x_refsource_MISC"],"url":"https://github.com/librenms/librenms/commit/3bea263e02441690c01dea7fa3fe6ffec94af335"},{"name":"https://github.com/librenms/librenms/releases/tag/26.2.0","tags":["x_refsource_MISC"],"url":"https://github.com/librenms/librenms/releases/tag/26.2.0"}],"affected":[{"vendor":"librenms","product":"librenms","versions":[{"version":">= 24.10.0, < 26.2.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-02-20T01:34:11.241Z"},"descriptions":[{"lang":"en","value":"LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 24.10.0 through 26.1.1 are vulnerable to Stored XSS via the unit parameter in Custom OID. The Custom OID functionality lacks strip_tags() sanitization while other fields (name, oid, datatype) are sanitized. The unsanitized value is stored in the database and rendered without HTML escaping. This issue is fixed in version 26.2.0."}],"source":{"advisory":"GHSA-fqx6-693c-f55g","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-20T15:26:32.832016Z","id":"CVE-2026-27016","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-20T15:34:34.942Z"}}]}}