Multiple cross-site scripting (XSS) vulnerabilities in example scripts in Caucho Technology Resin 2.0 through 2.1.2 allow remote attackers to inject arbitrary web script or HTML via (1) env.jsp, (2) form.jsp, (3) session.jsp, (4) the move parameter to tictactoe.jsp, or the (5) name or (6) comment fields to guestbook.jsp.

Caucho Quercus, as distributed in Resin before 4.0.29, does not properly handle unspecified characters in the names of variables, which has unknown impact and remote attack vectors, related to an "HTTP Parameter Contamination" issue.

Caucho Quercus, as distributed in Resin before 4.0.29, overwrites entries in the SERVER superglobal array on the basis of POST parameters, which has unspecified impact and remote attack vectors.

Directory traversal vulnerability in Caucho Quercus, as distributed in Resin before 4.0.29, allows remote attackers to create files in arbitrary directories via a .. (dot dot) in a pathname within an HTTP request.

Caucho Technology Resin 2.1.12 allows remote attackers to view JSP source via an HTTP request to a .jsp file that ends in a "%20" (encoded space character), e.g. index.jsp%20.