Manual HTML sanitization detected.

Description

Sanitizing HTML manually is error prone and can lead to Cross Site Scripting (XSS) vulnerabilities.

Remediations

❌ Avoid manually escaping HTML:

sanitized_user_input = user.Input
.gsub('<', '&lt;')
.gsub('>', '&gt;')
html = "<strong>#{sanitized_user_input}</strong>"

✅ Use a HTML sanitization library:

html = sanitize("<strong>#{user.Input}</strong>")

Resources

Associated CWE

OWASP Top 10

Configuration

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

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

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

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

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