void Document::clearFocusedElementTimerFired(Timer<Document>*)
{
    updateLayoutTreeIfNeeded();
    m_clearFocusedElementTimer.stop();

    if (m_focusedElement && !m_focusedElement->isFocusable())
        m_focusedElement->blur();
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.