Posted by Daniel Owens via Fulldisclosure on Nov 04 The Apache Struts2 Tiles plugin version <=7.4.0 (and >=6.3.0) codebase includes a `ViewPreparer` construct, replete with multiple ViewPreparer factories, that contains several important vulnerabilities including unsynchronised, unbounded caches. The lack of proper synchronisation means that certain factories will create caches that race, risking lost cache entries, corrupted internal bucket states under load (this can result in infinite...