Concrete5 8.5.4 – ‘name’ Stored XSS
# Exploit Title: Concrete5 8.5.4 - 'name' Stored XSS # Date: 2021-01 # Exploit Author: Quadron Research Lab # Version: Concrete5 8.5.4 # Tested on: Windows 10 x64 HUN/ENG Professional # Vendor: Concrete5 CMS (https://www.concrete5.org) # CVE: CVE-2021-3111 [Suggested description] The Express Entries Dashboard inConcrete5 8.5.4 allows stored XSS via the name field of a new data object at anindex.php/dashboard/express/entries/view/ URI. [Attack Vectors] Creating a new data object, the name field is not filtered. It is possible to place JavaScript code. [Stored XSS] Proof of Concept https://github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf |