What type of attack is being attempted in the following image?

Credential stuffing uses large sets of previously breached username and password pairs to attempt automated logins, not SQL syntax manipulation.

Buffer overflow attacks exploit insufficient bounds checking in memory allocation to overwrite adjacent memory, which is a lower-level binary exploitation technique unrelated to SQL input fields.

Cross-site scripting (XSS) injects client-side script code (typically JavaScript) into web pages to be executed in other users' browsers, not SQL commands targeting a database.

SQL injection attacks insert or 'inject' malicious SQL code into input fields that are passed unsanitized to a database query, allowing an attacker to manipulate query logic, extract data, bypass authentication, or destroy data. The telltale signs include input containing SQL keywords, quotes, comment sequences (--), or boolean logic such as ' OR '1'='1'.