PT-2026-56922 · Unknown · Roundcube Webmail
CVE-2026-54433
·
Published
2026-07-09
·
Updated
2026-08-13
CVSS v3.1
10
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Roundcube Webmail versions prior to 1.6.17
Roundcube Webmail versions prior to 1.7.2
Description
Stored Cross-Site Scripting (XSS) occurs via a crafted plain-text email message. This allows attacker-controlled JavaScript to execute within the victim's authenticated session when the message is opened or previewed, requiring no user interaction (zero-click).
Recommendations
Update Roundcube Webmail to version 1.6.17 or later.
Update Roundcube Webmail to version 1.7.2 or later.
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Roundcube Webmail