{"id":"CVE-2026-54433","details":"In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, there is Stored Cross-Site Scripting (XSS) via a crafted plain-text email message. The attacker-controlled JavaScript executes within the victim's authenticated session simply by opening or previewing the message (zero-click).","modified":"2026-07-19T03:31:15.983841171Z","published":"2026-07-14T16:18:16.549Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54433.json","unresolved_ranges":[{"extracted_events":[{"introduced":"1.6.0"},{"fixed":"1.6.17"},{"introduced":"1.7.0"},{"fixed":"1.7.2"}],"source":"AFFECTED_FIELD"},{"source":"CPE_FIELD","extracted_events":[{"introduced":"1.6.0"},{"fixed":"1.6.17"},{"introduced":"1.7.0"},{"fixed":"1.7.2"}]},{"extracted_events":[{"fixed":"1.6.17"},{"introduced":"1.7.x"},{"fixed":"1.7.2"}],"source":"DESCRIPTION"}],"cna_assigner":"mitre"},"references":[{"type":"WEB","url":"https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54433.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54433"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/roundcube/roundcubemail","events":[{"introduced":"0"},{"fixed":"5cdc6a48b40beabff7f0bf5d9035f4491e877e4c"},{"introduced":"df9effa186f81d676962b941da4ebab5e05c3088"},{"fixed":"a08bc8f59bbd28cd3d863479478127e35beb959d"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.6.17"},{"introduced":"1.7.0"},{"fixed":"1.7.2"}]}}],"versions":["1.6.16","1.7.1","1.7.0","1.6.15","1.6.14","1.6.13","1.6.12","1.6.11","1.6.10","1.6.9","1.6.8","1.6.7","1.6.6","1.6.5","1.6.4","1.6.3","1.6.2","1.6.1","1.6.0","1.6-rc","1.6-beta","1.5-rc","1.5-beta","1.4-rc2","1.4-rc1","1.4-beta","1.3-beta","1.2-rc","1.2-beta","1.1.0","1.1-rc","1.1-beta","v0.1-beta2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54433.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}