Provide references for CVE-2021-4448.
Where can I find more information about CVE-2021-4448?
References are available at: https://www.wordfence.com/threat-intel/vulnerabilities/id/3bf76527-9a11-4755-992c-02fbc1a79bae?source=cve, https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477.