Provide references for CVE-2020-8639.
Where can I find more information about CVE-2020-8639?
References are available at: https://ackcent.com/blog/testlink-1.9.20-unrestricted-file-upload-and-sql-injection/, https://github.com/TestLinkOpenSourceTRMS/testlink-code/commit/57d81ae350d569c5c95087997fe051c49e14516d, http://packetstormsecurity.com/files/161401/TestLink-1.9.20-Shell-Upload.html.