VULNERABILITY INTELLIGENCE

CVE-2026-35539

CVSS score6.1 MEDIUM

EPSS probability0.26%

CISA KEVNot currently listed

Published2026-04-03

Last modified2026-07-24

Description

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.