Unrestricted Upload of File with Dangerous Type
A local code execution issue exists in Apache Struts2 when processing malformed XSLT files, which could let a malicious user upload and execute arbitrary files.
Improperly Controlled Modification of Dynamically-Determined Object Attributes
Apache Struts 2.0.0 to 2.5.20 forced double OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.