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...

PT-2026-29983

Name of the Vulnerable Software and Affected Versions Roundcube Webmail versions prior to 1.5.14 and prior to 1.6.14 Description A flaw exists in Roundcube Webmail that stems from inadequate sanitization of Cascading Style Sheets CSS within HTML email messages. This can allow for a bypass of...