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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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######################
# Author Information #
######################
Author : Ahmed Elhady Mohamed
twitter : @Ahmed__ELhady
Date : 01/07/2018
########################
# Software Information #
########################
Affected Software : SeoChecker Umbraco CMS Plug-in
Version: version 1.9.2 
Software website  : https://soetemansoftware.nl/seo-checker

###############
# Description #
###############
SeoChecker Umbraco CMS Plug-in version 1.9.2 is vulnerable to stored cross-site scripting vulnerability in two parameters 
which are SEO title and SEO description HTML parameters fields. A low privilege authenticated user who can edit the SEO tab
parameter value for any Ubmraco CMS content like an article will be able to inject a malicious code to execute arbitrary HTML
and JS code in a user's browser session in the context of an affected site. so when a high privilege user tries to access/edit 
the article content. the JS code will be executed. The vulnerabilities are tested on 1.9.2 version and Other versions may also be affected.


#################
# Exlpoit Steps #
#################
1- Access the application with a low privilege authenticated user
2- Go to the SEO tab for any article
3-Enter the following payload in SEO title and SEO description HTML parameters fields parameters 
"><script>alert(123)</script>
4- Access the article content page to edit and change contents value.  
5- The JS code will be executed.