CVE-2023-44766

MEDIUM

Concretecms Concrete Cms - XSS

Title source: rule

Description

A Cross Site Scripting (XSS) vulnerability in Concrete CMS v.9.2.1 allows an attacker to execute arbitrary code via a crafted script to the SEO - Extra from Page Settings. NOTE: the vendor disputes this because this SEO-related header change can only be made by an admin, and allowing an admin to place JavaScript there is an intentional customization feature.

Exploits (1)

nomisec WORKING POC

by sromanhu · poc

https://github.com/sromanhu/CVE-2023-44766_ConcreteCMS-Stored-XSS---SEO

View Code ZIP pw:eip

References (2)

[Exploit] https://github.com/sromanhu/ConcreteCMS-Stored-XSS---SEO

[Third Party Advisory] https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-31-concrete-cms-rejects-cve-2023-44760-and-cve-2023-44766

Scores

CVSS v3 4.8

EPSS 0.0019

EPSS Percentile 40.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Details

CWE

CWE-79

Status published

Products (2)

concrete5/concrete5 0Packagist

concretecms/concrete_cms 9.2.1

Published Oct 06, 2023

Tracked Since Feb 18, 2026