CVE-2026-114722

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a CSS scoping bypass in HTML messages. rcube_utils::mod_css_styles() did not treat an at-rule prologue such as @layer a; as a selector boundary, and did not handle selectors beginning with ::, so selectors following an at-rule were left unscoped and applied to the whole Roundcube interface instead of being confined to the message body. This allows an HTML message to restyle application chrome for UI redressing and spoofing. Upstream fixed this in the commit “Fix CSS scoping bypass in HTML messages using at-rules”.
Configurations

No configuration.

History

22 Oct 2026, 02:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-22 02:17

Updated : 2026-10-28 03:17


NVD link : CVE-2026-114722

Mitre link : CVE-2026-114722

CVE.ORG link : CVE-2026-114722


JSON object : View

Products Affected

No product.

CWE
CWE-669

Incorrect Resource Transfer Between Spheres