Bug 2500051 (CVE-2026-54432) - CVE-2026-54432 roundcubemail: Roundcube Webmail: Stored Cross-Site Scripting via unescaped attachment MIME type
Summary: CVE-2026-54432 roundcubemail: Roundcube Webmail: Stored Cross-Site Scripting ...
Keywords:
Status: NEW
Alias: CVE-2026-54432
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2500068 2500069
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-14 17:02 UTC by OSIDB Bzimport
Modified: 2026-07-14 17:29 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-07-14 17:02:31 UTC 
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.
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