{keyword}' Union All Select Null,null,null,null,null,null,null,null From Msysaccessobjects-- Udhz -

Comments out the rest of the original query so it doesn't cause a syntax error [1, 5]. How to Prevent It:

Breaks out of the intended data field in a SQL query. Comments out the rest of the original query

It looks like you’ve included a SQL injection payload in your request. This specific string is designed to test for vulnerabilities in a database by attempting to "union" (combine) your query results with data from a system table—in this case, MSysAccessObjects , which is specific to [1, 2, 4]. which is specific to [1