void Part::slotError(const QString& errorMessage, const QString& details)
{
    if (details.isEmpty()) {
        KMessageBox::error(widget(), errorMessage);
    } else {
        KMessageBox::detailedError(widget(), errorMessage, details);
    }
}

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.