Cross-site scripting (XSS) vulnerability in Apache Continuum 1.1 through 1.2.3.1, 1.3.6, and 1.4.0 Beta; and Archiva 1.3.0 through 1.3.3 and 1.0 through 1.22 allows remote attackers to inject arbitrary web script or HTML via a crafted parameter, related to the autoIncludeParameters setting for the extremecomponents table.