Settings API output is not escaped

[johnjamesjacoby]

Problem

The output from do_settings_sections() and do_settings_fields() is not escaped while looping through the $wp_settings_fields global.

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Unescaped Variables

• $section['title']
• $field['args']['label_for']
• $field['title']

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Solutions

• Escape everything. We shouldn't expect anyone that's using add_settings_section() and add_settings_field() to pass already escaped output. Note that core does not escape it's own usage here.
• Escape nothing, and expect escaped input. This would require developer education to escape all of the things.

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Patch Attached

Attached patch escapes all variable screen output.