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vuln-cve/data/2026/84xxx/CVE-2026-84189.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-84189",
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"state": "PUBLISHED",
"assignerShortName": "VulnCheck",
"dateReserved": "2026-09-01T10:51:59.728Z",
"datePublished": "2026-09-01T11:33:54.590Z",
"dateUpdated": "2026-10-08T15:25:42.828Z"
},
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"shortName": "VulnCheck",
"dateUpdated": "2026-10-08T15:25:42.828Z"
},
"datePublic": "2026-08-04T00:00:00.000Z",
"title": "LibreNMS before 26.7.0 Stored XSS via Oxidized API",
"descriptions": [
{
"lang": "en",
"value": "LibreNMS through 26.4.0 renders JSON fields (name, ip, model, author, commit message) returned by the admin-configurable Oxidized integration URL (oxidized.url) into the device showconfig page without applying htmlspecialchars(). An administrator who points the Oxidized URL at an attacker-controlled server (SSRF) can cause it to return malicious JSON, resulting in stored/persistent cross-site scripting affecting all users who view any device's showconfig tab. Fixed in 26.7.0."
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"cweId": "CWE-79",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "librenms",
"product": "librenms",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "semver",
"lessThan": "26.7.0"
},
{
"version": "26.7.0",
"status": "unaffected",
"versionType": "semver"
}
],
"packageURL": "pkg:composer/librenms/librenms"
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*",
"versionEndExcluding": "26.7.0"
}
]
}
]
}
],
"metrics": [
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "HIGH",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"subAvailabilityImpact": "NONE",
"baseScore": 9.2,
"baseSeverity": "CRITICAL"
}
},
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"format": "CVSS",
"cvssV3_1": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "REQUIRED",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH"
}
}
],
"references": [
{
"url": "https://github.com/librenms/librenms/security/advisories/GHSA-7gww-x7fh-jf9j",
"tags": [
"vendor-advisory"
],
"name": "GitHub Security Advisory (GHSA-7gww-x7fh-jf9j)"
},
{
"name": "VulnCheck Advisory: LibreNMS before 26.7.0 Stored XSS via Oxidized API",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/librenms-before-26.7.0-stored-xss-via-oxidized-api"
}
],
"credits": [
{
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"value": "k1bana",
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],
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},
"adp": [
{
"references": [
{
"url": "https://github.com/librenms/librenms/security/advisories/GHSA-7gww-x7fh-jf9j",
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],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-04T01:50:21.295441Z",
"id": "CVE-2026-84189",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-09-04T02:34:28.628Z"
}
}
]
}
}