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CVE-2026-35544

MEDIUM CVSS: 5.3 Published: 2026-04-03 Modified: 2026-07-24

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 Platforms

Roundcube Webmail

Weakness Type

CWE-669

References