CVE-2023-49337 Concrete CMS Stored XSS
An attacker can inject malicious scripts into the Concrete CMS admin dashboard, potentially leading to session hijacking or unauthorized actions.
- 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-2023-49337?
CVE-2023-49337 is a low-severity cross-site scripting vulnerability in Concretecms Concrete Cms, published on 25 Dec 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Concrete CMS before 9.2.3 allows Stored XSS on the Admin Dashboard via /dashboard/system/basics/name. (8.5 and earlier are unaffected.)
Weakness: CWE-79
Which versions are affected by CVE-2023-49337?
2 open source packages ship an affected version, including concrete5/concrete5. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
concrete5/concrete5 Packagist | From 9.0.0 | 9.2.3 |
concrete5/concrete5 Packagist | From 9.0.0 | 9.2.3 |
Products include Concretecms Concrete Cms.
How do I fix CVE-2023-49337?
Upgrade concrete5/concrete5 to 9.2.3 or later.
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-2023-49337 being exploited?
There is no known exploitation of CVE-2023-49337 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-9xxv-q6pp-96wq.