CVE-2026-54433
HIGH
NVD
CVSS Score
7.2
Severity
HIGH
Published
Jul 14, 2026
Vendor
unknown
Description
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, there is Stored Cross-Site Scripting (XSS) via a crafted plain-text email message. The attacker-controlled JavaScript executes within the victim's authenticated session simply by opening or previewing the message (zero-click).