Concrete5 8.5.4 - 'name' Stored XSS

Quadron Research Lab

# 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 (
# 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

type: php