Pigpig

**Name of the Vulnerable Software and Affected Versions** xiandafu beetl versions prior to 3.20.3 **Description** Improper neutralization of special elements in an expression language statement allows for remote exploitation. The issue exists within the `SpELFunction` component, specifically in an unknown function located in the file `beetl-classic-integration/beetl-spring-classic/src/main/java/org/beetl/ext/spring/SpELFunction.java`. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability. Restrict the use of the `SpELFunction` component to minimize the risk of exploitation.