CVE-2026-54432
Medium
Description
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.
SeverityMedium
CVSS4.7
Exploit probability—
Product
Webmail
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Roundcube Webmail1.6.17, 1.7.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Roundcube Webmail | 1.6.0 ≤ v < 1.6.17, 1.7.0 ≤ v < 1.7.2 | 1.6.17, 1.7.2 |
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