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Crossdomainscanner

Python tool for expired domain discovery in crossdomain.xml files

Install / Use

/learn @NetSPI/Crossdomainscanner
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

crossdomainscanner

Python tool to check for expired domains still allowed in crossdomain.xml files.

For more on this tool please go here.

Installation

~$ git clone https://github.com/NetSPI/crossdomainscanner
~$ cd crossdomainScanner
~$ pip install -r requirements.txt
[follow the example below for runtime usage]

Example:

~$ python scanner.py https://jakereynolds.co -v -o output.txt
~$ cat output.txt
Searching crossdomain.xml on https://jakereynolds.co for unregistered domains

=============================================================

Crossdomain contents:
 - asdaasdasfwkjhcjhbwrgkljsv.com
 - thisisanexpireddomainaswell.es
 - thishasaninvalidTLD.invalidtld
  - Invalid TLD: invalidtld
 - jakereynoldsexpireddomain.com

Possible expired domains:
asdaasdasfwkjhcjhbwrgkljsv.com
thisisanexpireddomainaswell.es
jakereynoldsexpireddomain.com

This means that https://jakereynolds.co allows http://jakereynoldsexpireddomain.com in their crossdomain.xml file. However, the latter is not registered to any DNS. An attacker could now buy that domain and get full cross-domain access to https://jakereynolds.co

This tool is created for Ethical Hacking purposes, any illicit use is not related to its creator.

Related Skills

View on GitHub
GitHub Stars23
CategoryDevelopment
Updated7mo ago
Forks16

Languages

Python

Security Score

67/100

Audited on Aug 29, 2025

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