CVE-2026-35544

Medium CVSS: 5.3

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.

Vendor

Product

CWE

CWE-669

Yayın Tarihi

2026-04-03 05:16:22

Güncelleme

2026-04-03 16:10:23

Source Identifier

cve@mitre.org

KEV Date Added

Kategoriler

CWE-669 MEDIUM 2026

Referanslar

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/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