Sql Injection Challenge 5 Security Shepherd Jun 2026

But SQL precedence makes this unreliable.

Sometimes the WAF or input filter blocks SELECT , SUBSTRING , or spaces. Use: Sql Injection Challenge 5 Security Shepherd

Use parameterized queries so input is never treated as code. But SQL precedence makes this unreliable

In this scenario, the application attempts to sanitize user input by automatically replacing every single quote ( ' ) with a backslash and a quote ( \' ). To a developer, this seems like a solid way to prevent a user from breaking out of the SQL string. However, the logic fails to account for how backslashes themselves are handled. In this scenario, the application attempts to sanitize

By inputting a backslash in the username field, you effectively "neutralize" the closing quote of that field in the backend SQL query, causing the query to treat the subsequent AND password= portion as part of the string. The Payload OR username="admin";-- -