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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).

PUBLISHED Reserved 2026-06-15 | Published 2026-07-14 | Updated 2026-07-14 | Assigner mitre




HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

1.6.0 (semver) before 1.6.17
affected

1.7.0 (semver) before 1.7.2
affected

References

roundcube.net/...026/07/05/security-updates-1.6.17-and-1.7.2

cve.org (CVE-2026-54433)

nvd.nist.gov (CVE-2026-54433)

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