Disable textile inline styles to prevent XSS attacks (#2377).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2192 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redcloth3.rb

@@ -470,8 +470,7 @@ class RedCloth3 < String
             style << "vertical-align:#{ v_align( $& ) };" if text =~ A_VLGN
         end
 
-        style << "#{ htmlesc $1 };" if not filter_styles and
+        style << "#{ htmlesc $1 };" if text.sub!( /\{([^}]*)\}/, '' ) && !filter_styles
-            text.sub!( /\{([^}]*)\}/, '' )
 
         lang = $1 if
             text.sub!( /\[([^)]+?)\]/, '' )

lib/redmine/wiki_formatting/textile/formatter.rb

@@ -30,6 +30,7 @@ module Redmine
           super
           self.hard_breaks=true
           self.no_span_caps=true
+          self.filter_styles=true
         end
         
         def to_html(*rules, &block)

test/unit/helpers/application_helper_test.rb

@@ -69,7 +69,8 @@ class ApplicationHelperTest < HelperTestCase
       '!http://foo.bar/image.jpg!' => '<img src="http://foo.bar/image.jpg" alt="" />',
       'floating !>http://foo.bar/image.jpg!' => 'floating <div style="float:right"><img src="http://foo.bar/image.jpg" alt="" /></div>',
       'with class !(some-class)http://foo.bar/image.jpg!' => 'with class <img src="http://foo.bar/image.jpg" class="some-class" alt="" />',
-      'with style !{width:100px;height100px}http://foo.bar/image.jpg!' => 'with style <img src="http://foo.bar/image.jpg" style="width:100px;height100px;" alt="" />',
+      # inline styles should be stripped
+      'with style !{width:100px;height100px}http://foo.bar/image.jpg!' => 'with style <img src="http://foo.bar/image.jpg" alt="" />',
       'with title !http://foo.bar/image.jpg(This is a title)!' => 'with title <img src="http://foo.bar/image.jpg" title="This is a title" alt="This is a title" />',
       'with title !http://foo.bar/image.jpg(This is a double-quoted "title")!' => 'with title <img src="http://foo.bar/image.jpg" title="This is a double-quoted &quot;title&quot;" alt="This is a double-quoted &quot;title&quot;" />',
     }