CVE-2011-5090: Improper Authentication

GR Board aka grboard 1.8.6.5 Community Edition does not require authentication for certain database actions, which allows remote attackers to modify or delete data via a request to 1 modrewrite.php, 2 commentwriteok.php, 3 poll/index.php, 4 update/index.php, 5 trackback.php, or 6 an arbitrary...