5.3

CVE-2026-35544

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Roundcube ≫ Webmail Version <= 1.5.13
Roundcube ≫ Webmail Version >= 1.6.0 <= 1.6.13
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.37% 0.282
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@mitre.org 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-669 Incorrect Resource Transfer Between Spheres

The product does not properly transfer a resource/behavior to another sphere, or improperly imports a resource/behavior from another sphere, in a manner that provides unintended control over that resource.

https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
Vendor Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
Release Notes
https://github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672923abaff8191c0
Patch
https://github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af72f7c2596018662
Patch
https://github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7
Patch