{"action":"Upgrade roundcube/roundcubemail to 1.7-rc5 or later.","affected":[{"fixed":"1.7-rc5","introduced":"1.7-beta"}],"component":"roundcube/roundcubemail","cve_ids":["CVE-2026-35544"],"ecosystem":"Packagist","epss":0.00366,"exploited":false,"fixed_versions":["1.7-rc5"],"ghsa_id":"GHSA-xpqh-grpw-4xmg","id":"tcs_01M5KFB810TE60MWMVW6PTPBP5","modified_at":"2026-04-04T07:11:22.193001Z","published_at":"2026-04-03T06:31:32Z","references":["https://osv.dev/vulnerability/GHSA-xpqh-grpw-4xmg","https://nvd.nist.gov/vuln/detail/CVE-2026-35544","https://github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af72f7c2596018662","https://github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672923abaff8191c0","https://github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7","https://github.com/roundcube/roundcubemail","https://github.com/roundcube/roundcubemail/releases/tag/1.5.14","https://github.com/roundcube/roundcubemail/releases/tag/1.6.14","https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5","https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-xpqh-grpw-4xmg","url":"https://osv.dev/vulnerability/GHSA-xpqh-grpw-4xmg"}],"summary":"Roundcube Webmail: Insufficient CSS sanitization in HTML e-mail messages"}