Cross-site scripting in Roundcube Webmail - #VU132212

 

Cross-site scripting in Roundcube Webmail - #VU132212

Published: May 25, 2026


Vulnerability identifier: #VU132212
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Roundcube
Affected software:
Roundcube Webmail

Detailed vulnerability description

The vulnerability allows a remote user to inject arbitrary script or style content.

The vulnerability exists due to stored cross-site scripting in the subject field of the draft restore dialog when rendering restored draft data. A remote user can save a specially crafted draft subject to inject arbitrary script or style content.


Remediation

Install security update from vendor's website.

Sources