CVE-2020-11890

Improper input validations in the usergroup table class could lead to a broken ACL configuration to RCE

This exploit can cause you to gain Super Admin by creating a new account.

Link

https://developer.joomla.org/security-centre/810-20200402-core-missing-checks-for-the-root-usergroup-in-usergroup-table.html

PoC

User Requirements

• A standard Admin account; not a Superadmin account.

Affected Versions

Joomla Core before version 3.9.17

Gain access: Create a new Superadmin, then trigger RCE.

Remote Code Execution (RCE) in Joomla

Run cve202011890.py with your credentials and access link rce:

Original code by: https://github.com/HoangKien1020/CVE-2020-11890 Forked by Emil