Fixes for ruby 3

app/models/wp_item.rb

@@ -162,7 +162,7 @@ module WPScan
       #
       # @return [ Typhoeus::Response ]
       def head_and_get(path, codes = [200], params = {})
-        final_path = +@path_from_blog
+        final_path = @path_from_blog.dup # @path_from_blog is set in the plugin/theme
         final_path << path unless path.nil?
 
         blog.head_and_get(final_path, codes, params)

lib/wpscan/target/platform/wordpress/custom_directories.rb

@@ -125,14 +125,14 @@ module WPScan
           return @uri.to_s unless path
 
           if %r{wp-content/plugins}i.match?(path)
-            path = +path.gsub('wp-content/plugins', plugins_dir)
+            new_path = path.gsub('wp-content/plugins', plugins_dir)
           elsif /wp-content/i.match?(path)
-            path = +path.gsub('wp-content', content_dir)
+            new_path = path.gsub('wp-content', content_dir)
           elsif path[0] != '/' && sub_dir
-            path = "#{sub_dir}/#{path}"
+            new_path = "#{sub_dir}/#{path}"
           end
 
-          super(path)
+          super(new_path || path)
         end
       end
     end

wpscan.gemspec

@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.executables           = ['wpscan']
   s.require_paths         = ['lib']
 
-  s.add_dependency 'cms_scanner', '~> 0.13.4'
+  s.add_dependency 'cms_scanner', '~> 0.13.5'
 
   s.add_development_dependency 'bundler',             '>= 1.6'
   s.add_development_dependency 'memory_profiler',     '~> 1.0.0'