PT-2026-29978

CVE-2026-35539

Published

2026-03-18

Updated

2026-05-07

Description by

CVSS 2.0

6.4

Medium

MetricsAV:N/AC:L/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions Roundcube Webmail versions prior to 1.5.14 and prior to 1.6.14

Description A flaw exists in Roundcube Webmail that allows for cross-site scripting (XSS). This occurs due to inadequate sanitization of HTML attachments when previewed. An attacker can exploit this by having a victim preview a specially crafted text/html attachment.

Recommendations Update Roundcube Webmail to version 1.5.14 or later. Update Roundcube Webmail to version 1.6.14 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Y0Us

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')

Related identifiers