Wire · technology
Urgent security fix issued for code vital to estimated 70% of all websites
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Fusion42 · 21 October 2026 · Fusion42 review
A critical security vulnerability affecting PHP, which powers an estimated 70% of all websites including WordPress, has been fixed with an urgent update. Security agencies in the US and UK are strongly urging immediate patching to prevent remote code execution attacks.
This Wire brief sits within Fusion42's coverage of Enterprise Software, and 16 sources have reported it between 21 Oct 2026 and 22 Oct 2026.
◆ ◆ The Wire takeaway
Immediate PHP updates are mandatory to avoid server takeovers, making unpatched web infrastructure a high-risk liability. You need to prioritise patching now or disconnect affected systems to keep hosting safe.
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16 sources · first reported 21 Oct 2026 · latest 22 Oct 2026
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