Sanitize `vbscript:` linksrs-data-links

Closes https://dev.gitlab.org/gitlab/gitlabhq/issues/2660

1 files changed, 7 insertions, 0 deletions

diff --git a/spec/lib/banzai/filter/sanitization_filter_spec.rb b/spec/lib/banzai/filter/sanitization_filter_spec.rb
index 247f492e6a9..4a7b00c7660 100644
--- a/spec/lib/banzai/filter/sanitization_filter_spec.rb
+++ b/spec/lib/banzai/filter/sanitization_filter_spec.rb
@@ -170,6 +170,13 @@ describe Banzai::Filter::SanitizationFilter, lib: true do
       expect(output.to_html).to eq '<a>XSS</a>'
     end
 
+    it 'disallows vbscript links' do
+      input = '<a href="vbscript:alert(document.domain)">XSS</a>'
+      output = filter(input)
+
+      expect(output.to_html).to eq '<a>XSS</a>'
+    end
+
     it 'allows non-standard anchor schemes' do
       exp = %q{<a href="irc://irc.freenode.net/git">IRC</a>}
       act = filter(exp)