CVE-2015-8864: Cross-site scripting (XSS) vulnerability in Roundcube Webmail before 1.0.9 and 1.1.x before 1.1.5 allows re...

Security readout for executives and security teams

This is an old Roundcube Webmail cross-site scripting issue. A malicious SVG could cause script or HTML to run in the webmail interface on vulnerable versions. For executives, the concern is account and session risk in exposed webmail, but the source bundle provides no CVSS score or active exploitation evidence. Exposure is likely limited to organizations still running vulnerable Roundcube Webmail branches: before 1.0.9, or 1.1.x before 1.1.5. Publicly reachable webmail increases business relevance. The provided affected-product metadata is sparse, so validate by deployed Roundcube version rather than CPE matching. Address this in normal vulnerability remediation cycles, faster for internet-facing webmail or high-value mailboxes. The issue is old and has fixed releases, but webmail XSS can affect user trust, session security, and email confidentiality if vulnerable systems remain exposed. Mitigation focus: Upgrade Roundcube Webmail to 1.0.9, 1.1.5, or a later supported release.; Apply distribution vendor updates where Roundcube is managed by OS packages.; Review the Roundcube changelog and release notes for deployment-specific guidance..

Prepared

Jun 13, 2026, 05:18 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.