From e69201a466d40d563d3c28a599c1569cfca9b471 Mon Sep 17 00:00:00 2001
From: Frédéric Buclin <LpSolit@gmail.com>
Date: Tue, 22 Dec 2015 18:56:39 +0100
Subject: Bug 1221518: (CVE-2015-8508) [SECURITY] XSS in dependency graphs when
 displaying the bug summary r=gerv a=dkl

---
 showdependencygraph.cgi | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

(limited to 'showdependencygraph.cgi')

diff --git a/showdependencygraph.cgi b/showdependencygraph.cgi
index a023dd77d..27e063f62 100755
--- a/showdependencygraph.cgi
+++ b/showdependencygraph.cgi
@@ -61,7 +61,7 @@ sub CreateImagemap {
             # Pick up bugid from the mapdata label field. Getting the title from
             # bugtitle hash instead of mapdata allows us to get the summary even
             # when showsummary is off, and also gives us status and resolution.
-            my $bugtitle = html_quote(clean_text($bugtitles{$bugid}));
+            my $bugtitle = $bugtitles{$bugid};
             $map .= qq{<area alt="bug $bugid" name="bug$bugid" shape="rect" } .
                     qq{title="$bugtitle" href="$url" } .
                     qq{coords="$leftx,$topy,$rightx,$bottomy">\n};
@@ -180,13 +180,16 @@ foreach my $k (@bug_ids) {
     # Retrieve bug information from the database
     my ($stat, $resolution, $summary) = $dbh->selectrow_array($sth, undef, $k);
 
-    # Resolution and summary are shown only if user can see the bug
-    if (!$user->can_see_bug($k)) {
+    $vars->{'short_desc'} = $summary if ($k eq $cgi->param('id'));
+
+    # The bug summary is shown only if the user can see the bug.
+    if ($user->can_see_bug($k)) {
+        $summary = html_quote(clean_text($summary));
+    }
+    else {
         $summary = '';
     }
 
-    $vars->{'short_desc'} = $summary if ($k eq $cgi->param('id'));
-
     my @params;
 
     if ($summary ne "" && $cgi->param('showsummary')) {
-- 
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