{keyword}') Order By 1# Apr 2026

ORDER BY 1 : Tells the database to sort by the first column. Attackers increment this number (2, 3, 4...) until the page errors out, revealing the total column count.

Use placeholders (like ? or :name ) instead of inserting variables directly into the string. {KEYWORD}') ORDER BY 1#

Only allow expected characters. If a field should only be alphanumeric, reject special characters like ' , ) , and # . ORDER BY 1 : Tells the database to sort by the first column

This is the most effective defense. It treats the input as data, not executable code. 4...) until the page errors out