CVEvulnerability
CVE-2026-35544
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-03
- Last modified
- 2026-07-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-669
Description
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.
Affected configurations
• roundcube webmail (<= 1.5.13)
• roundcube webmail (>= 1.6.0 <= 1.6.13)
Related
Weakness · CWE (1)
- CWE-669 Incorrect Resource Transfer Between Spheres weakness
References
- https://github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af72f7c2596018662 Patch
- https://github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672923abaff8191c0 Patch
- https://github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7 Patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 Release Notes
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 Vendor Advisory