X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/22edaf77c2a4318ebd8ed0881dd6a62cfc2ca2b2..fb6e73b3698089f47ae63d1569225938699d84e1:/IkiWiki/Plugin/getsource.pm

diff --git a/IkiWiki/Plugin/getsource.pm b/IkiWiki/Plugin/getsource.pm
index 91c4cc1c9..d1555430e 100644
--- a/IkiWiki/Plugin/getsource.pm
+++ b/IkiWiki/Plugin/getsource.pm
@@ -42,19 +42,24 @@ sub pagetemplate (@) {
 sub cgi_getsource ($) {
 	my $cgi=shift;
 
-	return unless (defined $cgi->param('do') &&
-					$cgi->param("do") eq "getsource");
+	return unless defined $cgi->param('do') &&
+	              $cgi->param("do") eq "getsource";
 
 	IkiWiki::decode_cgi_utf8($cgi);
 
 	my $page=$cgi->param('page');
 
+	if (! defined $page || $page !~ /$config{wiki_file_regexp}/) {
+		error("invalid page parameter");
+	}
+
 	# For %pagesources.
 	IkiWiki::loadindex();
 
 	if (! exists $pagesources{$page}) {
 		IkiWiki::cgi_custom_failure(
-			$cgi->header(-status => "404 Not Found"),
+			$cgi,
+			"404 Not Found",
 			IkiWiki::misctemplate(gettext("missing page"),
 				"<p>".
 				sprintf(gettext("The page %s does not exist."),