Add CVE-2020-12832 (Updated CVEs)

[riteshs4hu]

Add CVE-2020-12832

WordPress Simple File List - Path Traversal

Template validation

• [x] Validated with a host running a vulnerable version and/or configuration (True Positive)
• [ ] Validated with a host running a patched version and/or configuration (avoid False Positive)

Additional References:

• Nuclei Template Creation Guideline
• Nuclei Template Matcher Guideline
• Nuclei Template Contribution Guideline
• PD-Community Discord server