SQL injection vulnerability in the get_active_session function in the KTAPI_UserSession class in webservice/clienttools/services/mdownload.php in KnowledgeTree 3.7.0.2 and earlier allows remote attackers to execute arbitrary SQL commands via the u parameter, related to the getFileName function.
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.