Provide references for CVE-2021-4301.
Where can I find more information about CVE-2021-4301?
References are available at: https://vuldb.com/?id.217418, https://vuldb.com/?ctiid.217418, https://github.com/slackero/phpwcms/commit/77dafb6a8cc1015f0777daeb5792f43beef77a9d, https://github.com/slackero/phpwcms/releases/tag/v1.9.27.