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// CVE · PUBLISHED 2026-07-14

CVE-2026-54433

Roundcube / Webmail

10.0 · CVSS 3.1Critical

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).

References

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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.