CVE-2024-2753 Concrete CMS version 9 below 9.2.8 and below 8.5.16 is vulnerable to stored XSS on the calendar color settings screen
A rogue administrator can inject malicious JavaScript into calendar color settings, leading to stored XSS when other users visit the page.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-2753?
CVE-2024-2753 is a low-severity cross-site scripting vulnerability in Concretecms Concrete Cms, published on 3 Apr 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Concrete CMS version 9 before 9.2.8 and previous versions prior to 8.5.16 is vulnerable to Stored XSS on the calendar color settings screen since Information input by the user is output without escaping. A rogue administrator could inject malicious javascript into the Calendar Color Settings screen which might be executed when users visit the affected page. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 2.0 with a vector of AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N&version=3.1 https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator
Thank you Rikuto Tauchi for reporting
Weakness: CWE-79
Which versions are affected by CVE-2024-2753?
4 open source packages ship an affected version, including concrete5/concrete5. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
concrete5/concrete5 Packagist | All versions | 8.5.16 |
concrete5/concrete5 Packagist | All versions | 8.5.16 |
concrete5/concrete5 Packagist | From 9.0.0RC1 | 9.2.8 |
concrete5/concrete5 Packagist | From 9.0.0RC1 | 9.2.8 |
Products include Concretecms Concrete Cms.
How do I fix CVE-2024-2753?
Upgrade concrete5/concrete5 to a fixed version for your release line: 8.5.16 or 9.2.8.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-2753 being exploited?
There is no known exploitation of CVE-2024-2753 in the wild and no public exploit code.
Other vulnerabilities in Concretecms Concrete Cms
- CVE-2023-48648 Concrete CMS allows unauthorized access because directories can be created with insecure permissions
- CVE-2022-21829 Code injection in concrete CMS
- CVE-2021-22958 Server-Side Request Forgery vulnerability in concrete5
- CVE-2021-40098 Path traversal in n/a
- CVE-2026-8134 Concrete CMS Vulnerable to Relative Path Traversal
Sources
Also known as GHSA-pj42-r64f-4xfq.