{"id":"CVE-2026-74999","title":"In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the \"Add to address book\" action was subject to stored XSS.","summary":"In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the \"Add to address book\" action was subject to stored XSS.","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"roundcube","product":"webmail","affected":["webmail >= 1.6.0, < 1.6.18","webmail >= 1.7.0, < 1.7.3"],"patched":["webmail 1.7.3"],"published":"2026-08-17","updated":"2026-09-08","sourceUpdated":"2026-09-08T19:10:56.230","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74999","references":[{"url":"https://github.com/roundcube/roundcubemail/commit/2d2a9604a820ee279c9ffcfe856b9b93a93995a8","label":"cve@mitre.org"},{"url":"https://github.com/roundcube/roundcubemail/commit/32f20c6bfd12dff9cfb6880ae303e740f0804fe8","label":"cve@mitre.org"},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.18","label":"cve@mitre.org"},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7.3","label":"cve@mitre.org"},{"url":"https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3","label":"cve@mitre.org"}],"tags":["nvd"],"epss":0.00305,"epssPercentile":0.20652,"ingestedAt":"2026-09-08T20:10:03.157Z","slug":"CVE-2026-74999","body":"## Overview\n\nIn Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the \"Add to address book\" action was subject to stored XSS.\n\n## Affected\n\n- `webmail >= 1.6.0, < 1.6.18`\n- `webmail >= 1.7.0, < 1.7.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `webmail 1.7.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}