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
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.