[ffmpeg-sdk] ffmpeg-sdk vulnerable to OS Command Injection

A command injection vulnerability affects all versions of package ffmpeg-sdk. The injection point is located in line 9 in index.js.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-28435
• https://security.snyk.io/vuln/SNYK-JS-FFMPEGSDK-1050429
• https://github.com/CubetLabs/ffmpeg-sdk/blob/master/index.js
• https://github.com/shajanjp/ffmpeg-sdk/blob/master/index.js
• https://github.com/advisories/GHSA-rwvf-c3wm-qm6w