		void CWebServer::RemoveSession(const std::string & sessionId) {
			if (sessionId.empty()) {
				return;
			}
			m_sql.safe_query(
				"DELETE FROM UserSessions WHERE SessionID = '%q'",
				sessionId.c_str());
		}

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.