escape path in 404 (not found) page

This escapes the `path` variable using `escape_html` from `Rack::Utils` to prevent Cross-Site Scripting in 404 (Not Found) pages.
2016-02-15 23:42:05 +01:00 · 2016-02-15 23:42:05 +01:00 · b7886aa14c
parent 6c8fc2ee07
commit b7886aa14c
1 changed files with 2 additions and 0 deletions
--- a/middleman-core/lib/middleman-core/rack.rb
+++ b/middleman-core/lib/middleman-core/rack.rb
@ -2,6 +2,7 @@ require 'rack'
 require 'rack/file'
 require 'rack/lint'
 require 'rack/head'
+require 'rack/utils'

 require 'middleman-core/util'
 require 'middleman-core/logger'
@ -124,6 +125,7 @@ module Middleman

    # Halt request and return 404
    def not_found(res, path)
+      path = ::Rack::Utils::escape_html(path)
      res.status = 404
      res.write "<html><head></head><body><h1>File Not Found</h1><p>#{path}</p></body></html>"
      res.finish