CVE-2025-40891

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An unauthenticated attacker can send specially crafted network packets at two different times to inject HTML tags into asset attributes across two snapshots. Exploitation requires a victim to use the Time Machine Snapshot Diff feature on those specific snapshots and perform specific GUI actions, at which point the injected HTML renders in their browser, enabling phishing and open redirect attacks. Full XSS exploitation is prevented by input validation and Content Security Policy. Attack complexity is high due to multiple required conditions."}, {"lang": "es", "value": "Se descubri\u00f3 una vulnerabilidad de inyecci\u00f3n HTML almacenada en la funcionalidad de Diferencia de Instant\u00e1neas de Time Machine debido a una validaci\u00f3n inadecuada de los datos de tr\u00e1fico de red. Un atacante no autenticado puede enviar paquetes de red especialmente dise\u00f1ados en dos momentos diferentes para inyectar etiquetas HTML en atributos de activos en dos instant\u00e1neas. La explotaci\u00f3n requiere que una v\u00edctima utilice la funci\u00f3n de Diferencia de Instant\u00e1neas de Time Machine en esas instant\u00e1neas espec\u00edficas y realice acciones espec\u00edficas de la GUI, momento en el cual el HTML inyectado se renderiza en su navegador, lo que permite ataques de phishing y redirecci\u00f3n abierta. La explotaci\u00f3n completa de XSS se evita mediante la validaci\u00f3n de entrada y la Pol\u00edtica de Seguridad de Contenido. La complejidad del ataque es alta debido a m\u00faltiples condiciones requeridas."}], "lastModified": "2026-09-30T23:10:00.237", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nozominetworks:cmc:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "91C795BB-9FFC-4FB0-B686-38DA32ACD478", "versionEndExcluding": "25.5.0"}, {"criteria": "cpe:2.3:a:nozominetworks:guardian:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5FBA5D15-9BD3-4062-8560-FEB7FDF4180D", "versionEndExcluding": "25.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "prodsec@nozominetworks.com"}