If you are seeking a financial reward for your discovery, it is important to approach the company in a professional and responsible manner. Here are some steps you can take:

1. Research the company's vulnerability disclosure program: Many companies have a policy in place for handling security vulnerabilities. Research the company's policy and follow it accordingly.

2. Contact the company: Contact the company's security team or support team and provide details about the vulnerability you have discovered. You can provide them with a proof of concept as well. Be sure to provide enough information for them to understand the issue, but avoid sharing too much information publicly until the company has had a chance to address the vulnerability.

3. Negotiate a reward: If the company offers a bug bounty program, you may be eligible for a reward. You can negotiate the terms and conditions for the reward with the company. It is important to be clear and upfront about what you are looking for, but also be open to discussing the company's needs and priorities.

4. Keep records: Keep records of all communications with the company, including emails and any other forms of communication. This will help you in case there are any disputes or issues down the line.

5. Be patient: Be patient with the company as they work to address the vulnerability. It may take some time for them to patch the vulnerability, and they may need to work with third-party vendors to do so.

Overall, it is important to approach the company in a professional and responsible manner, and to be transparent about your intentions. By doing so, you can help ensure that the vulnerability is addressed quickly and that you are fairly compensated for your efforts.
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