Ticket #17052: 17052-02.patch

src/wp-includes/pluggable.php

@@ -909 +909 @@
  * @return string redirect-sanitized URL
  **/
 function wp_sanitize_redirect($location) {
-        $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%!]|i', '', $location);
+        $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%!\[\]]|i', '', $location);
         $location = wp_kses_no_null($location);
 
         // remove %0d and %0a from location

tests/phpunit/tests/formatting/redirect.php

@@ -13 +13 @@
                 //Nesting checks
                 $this->assertEquals('http://example.com/watchthecarriagereturngo', wp_sanitize_redirect('http://example.com/watchthecarriagereturn%0%0ddgo'));
                 $this->assertEquals('http://example.com/watchthecarriagereturngo', wp_sanitize_redirect('http://example.com/watchthecarriagereturn%0%0DDgo'));
+
+                //IPv6 literals
+                $this->assertEquals('http://[::1]/wp-admin/install.php', wp_sanitize_redirect('http://[::1]/wp-admin/install.php'));
+                $this->assertEquals('http://[::1]/wp-admin/install.php', wp_sanitize_redirect('http://[::1]/wp-admin/install.php'));
+                $this->assertEquals('http://[2606:2800:220:6d:26bf:1447:1097:aa7]/', wp_sanitize_redirect('http://[2606:2800:220:6d:26bf:1447:1097:aa7]/'));
+
         }
 }