Description
JBoss RichFaces 4.5.3 through 4.5.17 allows unauthenticated remote attackers to inject an arbitrary expression language (EL) variable mapper and execute arbitrary Java code via a MediaOutputResource's resource request, aka RF-14309.
Remediation
References
http://seclists.org/fulldisclosure/2020/Mar/21
http://www.securityfocus.com/bid/104503
https://codewhitesec.blogspot.com/2018/05/poor-richfaces.html