CVE-2026-54432
CVSS Score
4.7
EPSS Score
0.2%
EPSS Percentile
11th
Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allows Stored Cross-Site Scripting (XSS). The issue occurs because the attachment MIME type is not properly escaped on the attachment-validation warning page.
| CWE | CWE-79 |
| Vendor | roundcube |
| Product | webmail |
| Published | Jul 14, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Roundcube / Webmail
1.6.0 < 1.6.17 1.7.0 < 1.7.2