CVE-2023-48650 Concrete CMS Stored XSS in Layout Preset Name

What is CVE-2023-48650?

CVE-2023-48650 is a medium-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 8.5.14 and 9 before 9.2.3 is vulnerable to an admin adding a stored XSS payload via the Layout Preset name.

Weakness: CWE-79

Which versions are affected by CVE-2023-48650?

4 open source packages ship an affected version, including concrete5/concrete5. It affects 1 product.

Products include Concretecms Concrete Cms.

How do I fix CVE-2023-48650?

Upgrade concrete5/concrete5 to a fixed version for your release line: 8.5.14 or 9.2.3.

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-2023-48650 being exploited?

There is no known exploitation of CVE-2023-48650 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 Critical 9.8
• CVE-2022-21829 Code injection in concrete CMS Critical 9.8
• CVE-2021-22958 Server-Side Request Forgery vulnerability in concrete5 Critical 9.8
• CVE-2021-40098 Path traversal in n/a Critical 9.8
• CVE-2026-8134 Concrete CMS Vulnerable to Relative Path Traversal Critical 9.4

All Concretecms Concrete Cms vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x577-gcc9-9xjj.