Add new vulnerabilities to database (must-have)

[andresriancho]

Description

Using vulndb in w3af I noticed that there are some missing vulnerabilities which need to be added to the database with high priority

Vulnerability list

• [x] 'Multiple CORS misconfigurations'
• [x] 'Sensitive and strange CORS methods enabled'
• [x] 'Sensitive CORS methods enabled'
• [x] 'Uncommon CORS methods enabled'
• [x] 'Access-Control-Allow-Origin set to "*"'
• [x] 'Insecure Access-Control-Allow-Origin with credentials'
• [x] 'Insecure Access-Control-Allow-Origin'
• [x] 'Incorrect withCredentials implementation'
• [x] 'Insecure file upload'
• [x] 'Insecure Frontpage extensions configuration'
• [x] 'Phishing vector'
• [x] 'Insecure SSL version'
• [x] 'Invalid SSL certificate'
• [x] Persistent Cross-Site Scripting vulnerability
• [x] Reflected File Download vulnerability
• [x] Shell shock vulnerability
• [x] Unhandled error in web application
• [x] Missing cache control for HTTPS content
• [x] Cross-domain javascript source

  References

• https://github.com/andresriancho/w3af/issues/9174
• https://github.com/andresriancho/w3af/blob/master/w3af/core/data/constants/vulns.py