Roundcube Webmail: Insufficient CSS sanitization in HTML e-mail messages
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-35544US | — | — | ||
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 m… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/roundcube/roundcubemailPACKAGE
- https://github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af72f7c2596018662WEB
- https://github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672923abaff8191c0WEB
- https://github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7WEB
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14WEB
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14WEB
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-35544ADVISORY
scry
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan