php2shell: The PHP Bug That Fires Before Your Code Runs
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- 8 Nov 2026
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Discussion of the blog article php2shell: The PHP Bug That Fires Before Your Code Runs.
Two critical PHP flaws landed October 21 and were in CISA's exploited-vulnerabilities catalog five days later. The 9.2 score isn't the part that should bother you. It's where the bug lives — it goes off while PHP is still assembling $_POST, before a single line of your application has run.
Discussion thread — share findings, corrections and follow-ups below.