CVE-2013-3106: Multiple cross-site scripting (XSS) vulnerabilities in Open-Xchange AppSuite and Server before 6.20.7 rev18...

Security readout for executives and security teams

Older Open-Xchange AppSuite and Server releases had multiple XSS flaws. A remote attacker could inject script or HTML through crafted content or headers, affecting users who view that content. Sources identify fixed revisions but do not provide CVSS severity or confirmed active exploitation. Exposure is likely limited to organizations still running the listed legacy Open-Xchange versions or revisions. Internet-facing webmail or groupware deployments increase business relevance because users may interact with attacker-supplied content through the application. Treat this as a moderate legacy exposure item. It is not supported by active-exploitation evidence in the supplied sources, but vulnerable webmail platforms can create account and data exposure if users process malicious content. Mitigation focus: Upgrade Open-Xchange AppSuite or Server to the fixed revision for the installed branch.; Confirm vendor advisory guidance before applying changes to unsupported legacy deployments.; Prioritize internet-facing or externally used Open-Xchange deployments first..

Prepared

Jun 14, 2026, 15:32 UTC (UTC+00:00)

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