Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Unauthenticated attackers could obtain metadata associated with hidden questions through public answer profiles. Users are recommended to upgrade to version 2.0.3, which fixes the issue.
https://lists.apache.org/thread/b9whow167cr0lkhqk6xzk0c2bb86srhy