The Jetty ResourceHandler in Apache ActiveMQ 5.x before 5.3.2 and 5.4.x before 5.4.0 allows remote attackers to read JSP source code via a // (slash slash) initial substring in a URI for (1) admin/index.jsp, (2) admin/queues.jsp, or (3) admin/topics.jsp.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.