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.
Published: 2026-07-14
Score: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4693-1 roundcube security update
Debian DSA Debian DSA DSA-6391-1 roundcube security update
History

Mon, 20 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unescaped MIME Type on Attachment Validation in Roundcube Webmail

Thu, 16 Jul 2026 15:15:00 +0000

Type Values Removed Values Added
Title Stored XSS via Unescaped MIME Type on Attachment Validation in Roundcube Webmail

Tue, 14 Jul 2026 16:45:00 +0000

Type Values Removed Values Added
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.
First Time appeared Roundcube
Roundcube webmail
Weaknesses CWE-79
CPEs cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
Vendors & Products Roundcube
Roundcube webmail
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Subscriptions

Roundcube Webmail
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-15T15:13:14.654Z

Reserved: 2026-06-15T13:27:41.810Z

Link: CVE-2026-54432

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-20T22:30:19Z

Weaknesses