{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.5.13"
              },
              {
                "introduced": "1.6.0"
              },
              {
                "last_affected": "1.6.13"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "c15f5dbf093a497e19a749b20e7f8fb5a9c24cde"
            },
            {
              "introduced": "993b888afe29c383bf45c84f17090f4db96367ba"
            },
            {
              "fixed": "099009b9c8e1d3c636fb9a5af72f7c2596018662"
            },
            {
              "fixed": "226811a1c974271dbedca72672923abaff8191c0"
            },
            {
              "fixed": "57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7"
            },
            {
              "fixed": "d742954ccbcdee7020f8f2e7c49ce0fca5a0efab"
            },
            {
              "fixed": "27ec6cc9cb25e1ef8b4d4ef39ce76d619caa6870"
            },
            {
              "fixed": "8e4a99b0746577c2928f5ae984b3ab533b970ca0"
            }
          ],
          "repo": "https://github.com/roundcube/roundcubemail",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-669"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35544.json"
  },
  "details": "An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to a fixed-position mitigation bypass via the use of !important.",
  "id": "CVE-2026-35544",
  "modified": "2026-07-15T01:49:16.842505883Z",
  "published": "2026-04-03T03:59:49.053Z",
  "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-2026-35544.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35544"
    },
    {
      "type": "FIX",
      "url": "https://github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af72f7c2596018662"
    },
    {
      "type": "FIX",
      "url": "https://github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672923abaff8191c0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}