# Critical PHP vulnerabilities spark global security scramble

> Critical PHP code flaws trigger worldwide website shutdowns as hackers exploit vulnerabilities.
- Title: Critical PHP vulnerabilities spark global security scramble
- Summary: Critical PHP code flaws trigger worldwide website shutdowns as hackers exploit vulnerabilities. Critical PHP vulnerabilities force 55 million websites to…
- Keywords: php, critical vulnerabilities, website shutdowns, hackers, security patches, wikipedia, 4chan, something awful, censys, openai, php foundation, nsa cyber
- Source: NBC Bay Area — https://nbcbayarea.com/news/national-international/critical-vulnerabilities-in-commonly-used-web-code-spark-rush-to-update-systems/4162160
- Published: 2026-10-21T16:28:06+00:00
- Read time: 1 min
- Topics: php, critical vulnerabilities, website shutdowns, hackers, security patches, wikipedia, 4chan, something awful, censys, openai, php foundation, nsa cyber
## Critical PHP flaws discovered
Critical vulnerabilities in PHP code used by 69% of websites spark global security concerns.
## PHP security team releases patches
PHP security team released patches at 10 a.m. et to fix critical vulnerabilities.
## Major websites temporarily offline
Wikipedia, Pinboard, 4chan, and Something Awful went offline to apply security patches.
## Japanese sites also shut down
Japanese daycare centers and video game sites temporarily closed for security updates.
## 55 million websites use PHP
Nearly 55 million web properties run php according to censys data.
## OpenAI discovered vulnerability
OpenAI found the vulnerability through ai models and warned php before hackers exploited it.
## Chainguard breaks patch embargo
Chainguard shared php patch details six hours early breaking security embargo agreement.
## Global security agencies warn
U.s. nsa, eu cert, and uk ncs recommend temporary shutdowns for php sites until patched.
## Key takeaway

Critical PHP vulnerabilities force 55 million websites to temporarily go offline to prevent hacks.