CVE-2026-54433

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).

CVSS Vector

Affected Products

References

• https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2