SQL injection vulnerability in the update_zone function in catalog/admin/geo_zones.php in osCommerce Online Merchant 2.3.3.4 and earlier allows remote administrators to execute arbitrary SQL commands via the zID parameter in a list action.
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.