{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.5.14"
              },
              {
                "introduced": "1.6.0"
              },
              {
                "fixed": "1.6.14"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d742954ccbcdee7020f8f2e7c49ce0fca5a0efab"
            },
            {
              "introduced": "993b888afe29c383bf45c84f17090f4db96367ba"
            },
            {
              "fixed": "27ec6cc9cb25e1ef8b4d4ef39ce76d619caa6870"
            },
            {
              "fixed": "10a6d1fa8acac85c727b0a6ae4a6642bfa27bea1"
            },
            {
              "fixed": "1b30edf5369668c92fe91dae3d52e477c808aa4f"
            },
            {
              "fixed": "8e4a99b0746577c2928f5ae984b3ab533b970ca0"
            }
          ],
          "repo": "https://github.com/roundcube/roundcubemail",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35539.json"
  },
  "details": "An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.",
  "id": "CVE-2026-35539",
  "modified": "2026-07-15T01:49:17.583574139Z",
  "published": "2026-04-03T03:39:17.400Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.5.14"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.14"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5"
    },
    {
      "type": "WEB",
      "url": "https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35539.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35539"
    },
    {
      "type": "FIX",
      "url": "https://github.com/roundcube/roundcubemail/commit/10a6d1fa8acac85c727b0a6ae4a6642bfa27bea1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/roundcube/roundcubemail/commit/1b30edf5369668c92fe91dae3d52e477c808aa4f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/roundcube/roundcubemail/commit/d742954ccbcdee7020f8f2e7c49ce0fca5a0efab"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}