User input in format string detected.

Description

If an application includes user input directly in a format string, an attacker can use format specifiers in the user input to produce misleading or fabricated messages.

Remediations

❌ Avoid format strings containing user input:

sprintf("The value was ${_GET["value"]}");

✅ Use a literal format string with additional arguments:

sprintf("The value was %s", $_GET["value"]);

Associated CWE

Configuration

To skip this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --skip-rule=php_lang_format_string_using_user_input

To run only this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --only-rule=php_lang_format_string_using_user_input

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