Cloudflare has implemented new Web Application Firewall (WAF) protections to defend against the php2shell vulnerability, a critical PHP exploit that allows attackers to execute arbitrary code on affected servers. These protective rules detect and block attempts to exploit this vulnerability, helping to safeguard websites from potential compromise without requiring immediate patching. This deployment enhances security for Cloudflare customers by mitigating risks posed by active exploits targeting php2shell flaws.
https://blog.cloudflare.com/php-vulnerabilities-waf-protection/