Providing feedback to core developers at WordPress, or even fixing a bug yourself can help WP be the most it can be. No matter how small the error, security problem, or theme problem may be, it needs to be reported! Here are a few different ways to do so:
For a WordPress.com security issue, visit this page and fill out the form.
For a plugin security, email firstname.lastname@example.org with as much detail as you can.
For a self-hosted security issue, email email@example.com with as much details you can.
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