Skip to content
Sign in
5.3 Medium

CVE-2026-35544 An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14

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 products and versions

Product Affected versions Fixed in
Webmail 1.6 1.6.0 → < 1.6.14 1.6.14
Webmail 1.5 earliest → < 1.5.14 1.5.14

Other CVEs of Webmail

The 62 CVEs of Webmail →
CVE-2026-114732 Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in… 6.8 Medium CVE-2026-114731 Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an uncontrolled resource consumption vulnerability… 5.3 Medium CVE-2026-114730 Roundcube Webmail 1.6.14 before 1.6.20 and 1.7.0 before 1.7.5 is affected by a server-side request forgery filter bypass 7.2 High CVE-2026-114729 Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass 5.3 Medium
Track this CVE