scp in OpenSSH through 8.3p1 allows command injection in the scp.c toremote function, as demonstrated by backtick characters in the destination argument. NOTE: the vendor reportedly has stated that they intentionally omit validation of "anomalous argument transfers" because that could "stand a great chance of breaking existing workflows."
https://security.netapp.com/advisory/ntap-20200731-0007/
https://security.gentoo.org/glsa/202212-06
https://github.com/sakethreddy0302/vuln_scanner
https://github.com/Kage-develop/lan-security-scanner
https://github.com/bhargaviparmar/Syntecxhub_VulnerabilityCVEScanner_Bhargavi
https://github.com/drackyjr/CVE-2020-15778-SCP-Command-Injection-Check
https://github.com/krlabs/openssh-vulnerabilities
https://github.com/Neko2sh1ro/CVE-2020-15778-Exploit
https://github.com/Neko-chanQwQ/CVE-2020-15778-Exploit