{"type":"post","id":"introducing-the-cloudflare-php-capture-the-flag-challenge-529e4d","slug":"introducing-the-cloudflare-php-capture-the-flag-challenge-529e4d","title":"Introducing the Cloudflare PHP Capture the Flag challenge","description":"Cloudflare has launched a PHP Capture the Flag challenge integrated with its Bug Bounty program.","retrieval_nugget":"Cloudflare has launched a PHP Capture the Flag challenge integrated with its Bug Bounty program. It invites security researchers to try to bypass Cloudflare’s web application firewall protections and capture a flag, making adversarial testing part of how the company examines a web-security boundary relevant to teams deploying AI-enabled applications.","published_at":"2026-10-27","updated_at":"2026-10-27","record_date":"2026-10-27","date_kind":"published_at","topics":["security","developer-tools"],"entities":["Cloudflare","Cloudflare Bug Bounty program","Cloudflare WAF","PHP Capture the Flag challenge"],"related_patterns":[],"novelty_label":"new_fact","what_changed":"Cloudflare is introducing a PHP Capture the Flag challenge, a new activity distinct from its prior PHP vulnerability protections and WAF releases.","prior_refs":["memory:9a1028b7-2a37-82c3-af6a-f555ea77b5ac","memory:d777a040-4e94-8d8e-a9c1-f599d720e1af","memory:f8bcb60a-eed6-8964-a5d8-7e5068a4a15c","memory:69fbbb4c-a0e2-87f3-a3c5-aad636f4baff"],"source_url":"https://blog.cloudflare.com/php-ctf","source_urls":["https://blog.cloudflare.com/php-ctf"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:introducing-the-cloudflare-php-capture-the-flag-challenge-529e4d","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/introducing-the-cloudflare-php-capture-the-flag-challenge-529e4d/","markdown":"https://newruntime.com/posts/introducing-the-cloudflare-php-capture-the-flag-challenge-529e4d.md","json":"https://newruntime.com/posts/introducing-the-cloudflare-php-capture-the-flag-challenge-529e4d.json"},"next_reads":[{"type":"topic","path":"/topics/security/","url":"https://newruntime.com/topics/security/","title":"Security","reason":"Explore the security topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/security.md","json_url":"https://newruntime.com/topics/security.json"},{"type":"topic","path":"/topics/developer-tools/","url":"https://newruntime.com/topics/developer-tools/","title":"Developer Tools","reason":"Explore the developer-tools topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/developer-tools.md","json_url":"https://newruntime.com/topics/developer-tools.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}