CVEvulnerability
CVE-2023-44763
5.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2023-10-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-434
Description
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.
Affected configurations
• concretecms concrete cms 9.2.1
Related
Weakness · CWE (1)
- CWE-434 Unrestricted Upload of File with Dangerous Type weakness
References
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail Exploit, Third Party Advisory
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types web.archive.org
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763 www.concretecms.org
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail Exploit, Third Party Advisory
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types web.archive.org
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763 www.concretecms.org