code.php in PC4Arb Pc4 Uploader 9.0 and earlier makes it easier for remote attackers to conduct SQL injection attacks via crafted keyword sequences that are removed from a filter in the id parameter in a banner action, as demonstrated via the "UNIunionON" string, which is collapsed into "UNION" by the filter_sql function.

Multiple directory traversal vulnerabilities in upfiles/index.php in Pc4 Uploader 10.0 and earlier allow remote attackers to read arbitrary files via (1) a .. (dot dot) or (2) absolute path in the file parameter.