ui-diff.c: avoid html injection

When path-filtering was used in commit-view, the path filter was
included without proper html escaping. This patch closes the hole.

Signed-off-by: Lukasz Janyst <ljanyst@cern.ch>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/ui-diff.c b/ui-diff.c
index a53425d..a7bc667 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -174,4 +174,7 @@ void cgit_print_diffstat(const unsigned char *old_sha1,
                        ctx.qry.sha2, NULL, 0);
-        if (prefix)
-                htmlf(" (limited to '%s')", prefix);
+        if (prefix) {
+                html(" (limited to '");
+                html_txt(prefix);
+                html("')");
+        }
         html(" (");