OpenAI: AI Discovers Critical PHP Vulnerabilities

OpenAI models assisted researchers in the Patch the Planet initiative to find critical security flaws in PHP, the open-source language running an estimated 70% of websites. The company led a coalition of maintainers and security providers over two months to prepare fixes ahead of disclosure, including a major change to the PHP engine. Every site using PHP can now upgrade safely. OpenAI packaged a Codex skill at github.com/openai/php2shell-checker to help site owners check exposure. The firm called the flaws one of the most impactful vulnerabilities in recent memory and an example of frontier AI locating internet-scale bugs before attackers.