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Cybersecurity — Tech Radar

Threats, incidents and security practices that matter to technology and business leaders.

Cybersecurity · 26 Oct 2026

Critical PHP flaws allow remote takeover of web servers; patches released

What happened. PHP fixed two critical flaws, found by Wiz Research with help from AI models, that let unauthenticated attackers run code on servers using versions 5.4 to 8.5.11. Patched releases are 8.5.12, 8.4.27, 8.3.36 and 8.2.35, and a public proof of concept exists.

Why it matters. PHP underpins WordPress, Drupal and many internal and vendor applications, so exposure is broad. Teams should inventory PHP across servers, containers and appliances, patch internet-facing systems first, and plan upgrades from versions 8.1 and older, which get no official fix.

Source: Canadian Centre for Cyber Security ↗

Briefings are selected and written with AI assistance from the linked sources and published automatically. Always read the original before acting on it.