CVE-2026-35571

{ "navItems": [ { "name": "Exploit Link", "href": "javascript:alert('CVE-2026-35571 Stored XSS')" } ] }

{"cve": {"id": "CVE-2026-35571", "sourceIdentifier": "[email protected]", "published": "2026-04-07T16:16:29.920", "lastModified": "2026-04-27T14:37:28.970", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, Mustache navigation templates interpolated configuration-controlled link values directly into href attributes without URL scheme validation. An administrator who could modify the navItems configuration could inject javascript: URIs, enabling stored cross-site scripting (XSS) against other authenticated users viewing the Emissary web interface. This vulnerability is fixed in 8.39.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.7, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nsa:emissary:*:*:*:*:*:*:*:*", "versionEndIncluding": "8.38.0", "matchCriteriaId": "9EC86D6D-EB58-4DE4-B88C-C562B33281A0"}]}]}], "references": [{"url": "https://github.com/NationalSecurityAgency/emissary/pull/1293", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-cpm7-cfpx-3hvp", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory", "Mitigation"]}]}}