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CVE-2026-35545

Estado: AnalizadaAlta (8.2)—

An issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in an e-mail message. This may lead to information disclosure or access-control bypass. This involves the animate element with attributeName=fill/filter/stroke.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Roundcube — Webmail

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-35545",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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              "automatable": "yes"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-04-03T15:35:57.759054Z"
        }
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "exploitabilityScore": 3.9
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    {
      "url": "https://roundcube.net/news/2026/03/29/security-updates-1.7-rc6-1.6.15-1.5.15",
      "tags": [
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      "source": "cve@mitre.org"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "cve@mitre.org",
      "description": [
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          "lang": "en",
          "value": "CWE-669"
        }
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      "value": "An issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in an e-mail message. This may lead to information disclosure or access-control bypass. This involves the animate element with attributeName=fill/filter/stroke."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Roundcube Webmail antes de 1.5.15 y 1.6.15. La función de bloqueo de imágenes remotas puede ser eludida mediante contenido SVG en un mensaje de correo electrónico. Esto puede llevar a revelación de información o elusión de control de acceso. Esto implica el elemento animate con attributeName=fill/filter/stroke."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
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  "sourceIdentifier": "cve@mitre.org"
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