Penetration testers frequently employ various approaches to exploit UNION SQL injection vulnerabilities. A common approach involves locating the number of columns given by the original query, often through error-based methods or blind enumeration. Once the quantity is established, malicious SQL code can be crafted to merge the results of the origin

Union-based SQL injection represents a particularly dangerous attack vector, allowing attackers to combine the results of multiple SELECT statements into a single output. The exploitation typically involves crafting SQL queries that utilize the UNION operator to join data from unauthorized tables or even entirely different databases. This can lead