Posted by Daniel Owens via Fulldisclosure on Nov 01 Description The Apache Struts2 REST Plugin's `DefaultContentTypeHandlerManager.getHandlerForResponse(HttpServletRequest, HttpServletResponse)` splits the `Accept` header on commas and passes each resulting token directly to `findHandler(String)` without trimming leading or trailing whitespace. `findHandler(String)` only retries a trimmed lookup when a token contains a semicolon (`;`), so a token that merely carries a leading space has no...