As widely reported, two critical vulnerabilities were recently identified in PHP, the core programming language powering WordPress. Our security teams have been actively monitoring the situation and implementing several mitigating actions.
As of 8:40 AM CDT (13:40 UTC) today, PHP has begun to release patches and other mitigating steps to resolve the vulnerabilities. Our team is working to roll out these updates across all customer platforms as soon as possible. In addition, we have already deployed protective mitigations at the CDN layer via Cloudflare and Fastly.
We will share further updates as deployment progresses.
Updates
Updated on 2026-10-21 12:30 pm
We are currently deploying patches for the Flywheel platform. Protective mitigations are still active at the CDN layer and at the host layer. Further updates will be provided as they are available.
Updated on 2026-10-21 02:00 pm
WP Engine has finished the deployment of security patches for two critical PHP vulnerabilities on the Flywheel platform. The patch has been applied to your PHP version, and no action is needed from you. If you have any additional questions, please reach out to your support team.
Updated on 2026-10-23 10:00 am
New PHP Vulnerability (CVE-2026-115560), Flywheel Customers Already Protected
WP Engine Security has reviewed the new vulnerability affecting PHP noted in CVE-2026-115560 and existing site-level mitigations already protect customers against exploitation. No further action is needed at this time.