fix unresolved variables in dast templates

[RamanaReddy0M]

Proposed changes

• closes: unresolved variables in the dast templates #5403

Checklist

• Pull request is created against the dev branch
• All checks passed (lint, unit/integration/regression tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[RamanaReddy0M]

✗ ./nuclei -dast -id blind-ssrf -u 'https://example.com?url=https://example.com' -debug-req

                     __     _
   ____  __  _______/ /__  (_)
  / __ \/ / / / ___/ / _ \/ /
 / / / / /_/ / /__/ /  __/ /
/_/ /_/\__,_/\___/_/\___/_/   v3.3.0

                projectdiscovery.io

[INF] Current nuclei version: v3.3.0 (latest)
[INF] Current nuclei-templates version: v9.9.1 (latest)
[WRN] Scan results upload to cloud is disabled.
[INF] New templates added in latest release: 75
[INF] Templates loaded for current scan: 1
[INF] Executing 1 signed templates from projectdiscovery/nuclei-templates
[INF] Targets loaded for current scan: 1
[INF] Using Interactsh Server: oast.pro
[INF] [blind-ssrf] Dumped HTTP request for https://example.com?url=https://cqghhcfd5lbmlptmc4q0jbqskrrjnacyd.oast.pro

GET /?url=https://cqghhcfd5lbmlptmc4q0jbqskrrjnacyd.oast.pro HTTP/1.1
Host: example.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Safari/605.1.15
Accept-Encoding: gzip

[INF] [blind-ssrf] Dumped HTTP request for https://example.com?url=https://example.com.cqghhcfd5lbmlptmc4q09xdo3qphapt7i.oast.pro

GET /?url=https://example.com.cqghhcfd5lbmlptmc4q09xdo3qphapt7i.oast.pro HTTP/1.1
Host: example.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Safari/605.1.15
Accept-Encoding: gzip

[INF] [blind-ssrf] Dumped HTTP request for https://example.com?url=https://example.com.cqghhcfd5lbmlptmc4q0yykkenocb7zw6.oast.pro

GET /?url=https://example.com.cqghhcfd5lbmlptmc4q0yykkenocb7zw6.oast.pro HTTP/1.1
Host: example.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Safari/605.1.15
Accept-Encoding: gzip

[INF] No results found. Better luck next time!

[tarunKoyalwar]

lgtm !