Cloudflare adds full-transaction PHP2Shell protection
Cloudflare deployed automatic PHP2Shell WAF protections across free and paid plans roughly nine hours before public disclosure. Its new full-transaction detection combines request and origin-response signals to block likely exploits while reducing false positives.
Cloudflare is turning the WAF from a request filter into an exploit-outcome detector—a meaningful upgrade as attackers increasingly adapt payloads in real time.
- –Coverage across free plans makes emergency virtual patching broadly accessible.
- –Response inspection can distinguish suspicious requests from confirmed exploitation more accurately.
- –Blocking the response prevents data exposure, but cannot undo actions already executed at the origin.
- –Developers must still patch PHP and prevent direct origin access; WAF protection is defense in depth.
- –The approach could extend beyond PHP2Shell to data exfiltration and other exploit-confirmation scenarios. [Full transaction detection](https://blog.cloudflare.com/full-transaction-waf)
DISCOVERED
1h ago
2026-10-23
PUBLISHED
1h ago
2026-10-23
RELEVANCE
AUTHOR
DIY Smart Code