Zomato: Solr Injection in `user_id` parameter at :/v2/leaderboard_v2.json

@zzzhacker13 identified a Solr Injection on the userid parameter at :/v2/leaderboardv2.json. Our team analyzed internally and found that only fq=injection was possible on the Solr endpoint, hence the Solr injection was of low impact since there was no way to escalate it to exfiltrate data, one...