CVE-2023-44763: XSS
First published: Tue Oct 10 2023(Updated: )
Concrete CMS v9.2.1 is affected by an Arbitrary File Upload vulnerability via a Thumbnail file upload, which allows Cross-Site Scripting (XSS). NOTE: the vendor's position is that a customer is supposed to know that "pdf" should be excluded from the allowed file types, even though pdf is one of the allowed file types in the default configuration.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Concretecms Concrete Cms | =9.2.1 | |
| composer/concrete5/concrete5 | <=9.2.1 | |
| =9.2.1 |
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Reference Links
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types
- https://nvd.nist.gov/vuln/detail/CVE-2023-44763
- https://github.com/advisories/GHSA-wrp2-6v6j-hfmg (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2023-44763.
What is the severity of CVE-2023-44763?
The severity of CVE-2023-44763 is medium with a CVSS score of 5.4.
What is the affected software?
The affected software is Concrete CMS version 9.2.1.
How does CVE-2023-44763 work?
CVE-2023-44763 allows arbitrary file uploads via the Thumbnail file upload, which can lead to Cross-Site Scripting (XSS) attacks.
Is there a fix available for CVE-2023-44763?
At the time of writing, there is no known fix or patch available for CVE-2023-44763. It is recommended to follow security best practices and monitor for updates from the software vendor.
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