The vulnerability stems from improper handling of the AWS SQS queue name parameter in an HTTP endpoint. While exact method names aren't disclosed in available sources, the advisory explicitly states that the queue name path parameter wasn't restricted. This would manifest in code that takes user-supplied queue names and uses them directly in file system operations without path validation. The plugin's purpose (SQS integration) and CWE-732 context indicate the vulnerable function is likely the endpoint handler responsible for retrieving queue activity logs, where input sanitization was missing.