The .shtml file extension indicates a web page containing directives. These directives are small pieces of code processed by the web server (like Apache or Nginx) before the page is delivered to the user.
The phrase typically relates to the management of Server-Side Includes (SSI) , a web technology used to deliver dynamic content . In cybersecurity contexts, this often refers to patching legacy vulnerabilities like SSI Injection that allow attackers to execute arbitrary code or access sensitive files. What is View SHTML?
The "patched" part of the keyword is vital because unpatched .shtml implementations are susceptible to . Server-Side Includes (SSI) Injection - OWASP Foundation