An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution. Users are recommended to upgrade to versions Struts 2.5.33 or Struts 6.3.0.2 or greater to fix this issue. https://lists.apache.org/thread/yh09b3fkf6vz5d6jdgrlvmg60lfwtqhj https://struts.apache.org/ https://www.cve.org/CVERecord?id=CVE-2023-50164