FKIE_CVE-2026-75006

Vulnerability from fkie_nvd - Published: 2026-08-17 13:16 - Updated: 2026-08-17 14:20
Severity
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Summary
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. This issue exists because of insufficient fixes for CVE-2026-35540, CVE-2026-48843 and CVE-2026-62643.
References
cve@mitre.orghttps://github.com/roundcube/roundcubemail/commit/7e10ca0110b7c9aa1b7850b843bb6625e47bbe00
cve@mitre.orghttps://github.com/roundcube/roundcubemail/commit/8a92380b06b5df1481e034c4f40d6a6546c21223
cve@mitre.orghttps://github.com/roundcube/roundcubemail/commit/92f85c883594e5be757154f94548a9ba903455c9
cve@mitre.orghttps://github.com/roundcube/roundcubemail/commit/c111b72950cd2bf57d6b86cd129568d90403322d
cve@mitre.orghttps://github.com/roundcube/roundcubemail/releases/tag/1.6.18
cve@mitre.orghttps://github.com/roundcube/roundcubemail/releases/tag/1.7.3
cve@mitre.orghttps://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Webmail",
          "vendor": "Roundcube",
          "versions": [
            {
              "lessThan": "1.6.18",
              "status": "affected",
              "version": "1.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.7.3",
              "status": "affected",
              "version": "1.7.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. This issue exists because of insufficient fixes for CVE-2026-35540, CVE-2026-48843 and CVE-2026-62643."
    }
  ],
  "id": "CVE-2026-75006",
  "lastModified": "2026-08-17T14:20:22.273",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-75006",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-17T14:06:37.236615Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-17T13:16:55.240",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/roundcube/roundcubemail/commit/7e10ca0110b7c9aa1b7850b843bb6625e47bbe00"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/roundcube/roundcubemail/commit/8a92380b06b5df1481e034c4f40d6a6546c21223"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/roundcube/roundcubemail/commit/92f85c883594e5be757154f94548a9ba903455c9"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/roundcube/roundcubemail/commit/c111b72950cd2bf57d6b86cd129568d90403322d"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.18"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.3"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



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