# CONTRIBUTING > **To submit code, patches, and proposals to Zend Framework, contributors must agree to the New BSD License and also submit a signed [Contributor License Agreement (CLA)](https://github.com/zendframework/zf1/wiki/Contributor-License-Agreement-%28CLA%29).** ## RESOURCES If you wish to contribute to Zend Framework, please be sure to read/subscribe to the following resources: - Coding Standards: http://framework.zend.com/manual/1.12/en/coding-standard.html - ZF Git Guide: [README-GIT.md](README-GIT.md) - Contributor's Guide: http://framework.zend.com/participate/contributor-guide-v1 - ZF Contributor's mailing list: Archives: http://zend-framework-community.634137.n4.nabble.com/ZF-Contributor-f680267.html Subscribe: zf-contributors-subscribe@lists.zend.com - ZF Contributor's IRC channel: #zftalk.dev on Freenode.net ## Reporting Potential Security Issues If you have encountered a potential security vulnerability in Zend Framework, please report it to us at [zf-security@zend.com](mailto:zf-security@zend.com). We will work with you to verify the vulnerability and patch it. When reporting issues, please provide the following information: - Component(s) affected - A description indicating how to reproduce the issue - A summary of the security vulnerability and impact We request that you contact us via the email address above and give the project contributors a chance to resolve the vulnerability and issue a new release prior to any public exposure; this helps protect Zend Framework users and provides them with a chance to upgrade and/or update in order to protect their applications. For sensitive email communications, please use [our PGP key](http://framework.zend.com/zf-security-pgp-key.asc).