The html/template package does not properly handle HTML-like "" comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. This may cause the template parser to improperly interpret the contents of <script> contexts, causing actions to be improperly escaped. This may be leveraged to perform an XSS attack.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-39318
• https://go.dev/cl/526156
• https://go.dev/issue/62196
• https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ
• https://pkg.go.dev/vuln/GO-2023-2041
• https://security.netapp.com/advisory/ntap-20231020-0009/
• https://security.gentoo.org/glsa/202311-09