The product uses external input to determine the names of variables into which information is extracted, without verifying that the names of the specified variables are valid. This could cause the program to overwrite unintended variables.
Use allowlists of variable names that can be extracted.
Consider refactoring your code to avoid extraction routines altogether.
In PHP, call extract() with options such as EXTR_SKIP and EXTR_PREFIX_ALL; call import_request_variables() with a prefix argument. Note that these capabilities are not present in all PHP versions.
Our security experts can help you identify and remediate CWE-621 vulnerabilities in your codebase.
Get Security Assessment