Provide references for CVE-2021-26600.
Where can I find more information about CVE-2021-26600?
References are available at: https://hackerone.com/reports/1081986, http://packetstormsecurity.com/files/166393/ImpressCMS-1.4.2-Authentication-Bypass.html, http://seclists.org/fulldisclosure/2022/Mar/43, http://karmainsecurity.com/KIS-2022-01.