Provide references for CVE-2019-15827.
Where can I find more information about CVE-2019-15827?
References are available at: https://wpvulndb.com/vulnerabilities/9478, https://wordpress.org/plugins/onesignal-free-web-push-notifications/#developers, https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5530.php.