Provide references for CVE-2021-3377.
Where can I find more information about CVE-2021-3377?
References are available at: https://doyensec.com/resources/Doyensec_Advisory_ansi_up4_XSS.pdf, https://github.com/drudru/ansi_up/commit/c8c726ed1db979bae4f257b7fa41775155ba2e27.