[code-server] Cross site scripting in code-server

Cross-site scripting (XSS) vulnerability exists in Coder Code-Server before 3.12.0, allows attackers to execute arbitrary code via crafted URL.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-42648
• https://github.com/cdr/code-server/issues/4355
• https://github.com/coder/code-server/pull/4430
• https://github.com/advisories/GHSA-2gp3-6c9p-jp7w