CVE-2023-44762 ConcreteCMS Cross-site Scripting vulnerability

What is CVE-2023-44762?

CVE-2023-44762 is a medium-severity cross-site scripting vulnerability in Concretecms Concrete Cms, published on 6 Oct 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A Cross Site Scripting (XSS) vulnerability in Concrete CMS from versions 9.2.0 to 9.2.2 allows an attacker to execute arbitrary code via a crafted script to the Tags from Settings - Tags.

Weakness: CWE-79

Which versions are affected by CVE-2023-44762?

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

Products include Concretecms Concrete Cms.

How do I fix CVE-2023-44762?

No fix has been published for CVE-2023-44762 yet. Limit exposure of the affected software until one is available.

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-2023-44762 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-44762 exists.

Public exploit code: 1 proofs of concept on GitHub.

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-6fm3-r6mf-j875.