{
  "id": "CVE-2020-13965",
  "url": "https://spydr.io/cve/CVE-2020-13965",
  "published": "2020-06-09T03:15:11.250Z",
  "modified": "2026-06-17T02:54:01.497Z",
  "score": 6.1,
  "severity": "medium",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "score_source": "NVD",
  "epss": 0.76596,
  "epss_percentile": 0.99531,
  "exploited": true,
  "kev": {
    "added": "2024-06-26",
    "due": "2024-07-17",
    "action": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability",
    "notes": "https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12; https://nvd.nist.gov/vuln/detail/CVE-2020-13965"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "roundcube"
  ],
  "products": [
    "roundcube webmail"
  ],
  "cwes": [
    "CWE-79",
    "CWE-80"
  ],
  "description": "An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 6.1,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.3.12",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.4.5",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.debian.org/security/2020/dsa-4700",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13965",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13965",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}