SQL injection vulnerability in the UnbDbEncode function in unb_lib/database.lib.php in Unclassified NewsBoard (UNB) 1.6.4 allows remote attackers to execute arbitrary SQL commands via the Query parameter in a search action to forum.php, a different vector than CVE-2005-3686.
Improper Neutralization of Special Elements used in an SQL Command The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.