The issue allows remote attackers to obtain sensitive information via specific attributes in various tags when a container supports Expression Language (EL). This is due to the evaluation of EL expressions in tags twice. The affected attributes include `name` in `spring:hasBindErrors` tags, `path` in `spring:bind` or `spring:nestedpath` tags, and several attributes in `spring:message`, `spring:theme`, and `spring:transform` tags, such as `arguments`, `code`, `text`, `var`, `scope`, `message`, and `value`.