Hi, AFAIK Ognl compiles myMap['myKey'] to the string myMap.myKey so yes I think you don't want to use complex strings as keys; for instance conceive `myKey-1` as key that will be translated to myMap.myKey-1 which likely won't work properly.
Regards. >-----Original Message----- >From: Ing. Andrea Vettori <a.vett...@b2bires.com> >Sent: Wednesday, January 15, 2020 1:54 PM >To: dev@struts.apache.org >Subject: Standard Accepted Patterns in DefaultAcceptedPatternsChecker > >Hello, >Today I had an issue with one of our web sites using struts and found it traces >back to the default accepted patterns in DefaultAcceptedPatternsChecker. >May I ask why the key values for “map like” parameters (i.e. map[‘key’]) are >limited in such a strict way ? In our case I had a minus sign in the key. Is >there any >security consideration behind this ? >Thank you! > > > public static final String[] ACCEPTED_PATTERNS = { > "\\w+((\\.\\w+)|(\\[\\d+\\])|(\\(\\d+\\))|(\\['(\\w|[\\u4e00- >\\u9fa5])+'\\])|(\\('(\\w|[\\u4e00-\\u9fa5])+'\\)))*" > }; > >— >Ing. Andrea Vettori >Responsabile Sistemi Informativi