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Simgen

Free checker for the PHP2Shell flaw that works on old, slow sites

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PHP released an emergency fix on 21 October 2026 (8.5.12, 8.4.27, 8.3.36, 8.2.35) for critical remote code execution flaws (CVSS 9.2), after exploit code leaked. PHP 8.1 and older get no official release. 69% of the web runs PHP. Check any site free and get it fixed safely.

PHP emergency patch (Oct 21 2026): is your site exposed? · Kyle Clouthier Kyle Clouthier Full-stack developer · Marketing & lead gen Services Work About Let's talk Live 21 Oct 2026, 17:00 UTC BambooHR, the HR and payroll service, takes itself offline in the US, Canada and Ireland over PHP2Shell, warning that payroll will be interrupted and giving no restore time. In the Netherlands the parliament’s site, the national cyber security centre, Tweakers and several education systems are also offline as a precaution. Timeline Critical · Remote code execution A critical PHP flaw can hand you

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