Joomla Component J-MultipleHotelReservation 6.0.7 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the hotel_id parameter. Attackers can send POST requests to the search-hotels endpoint with crafted SQL UNION SELECT statements to extract sensitive database information including table names and column data.
https://www.vulncheck.com/advisories/joomla-j-multiplehotelreservation-sql-injection