Vulnerability Details CVE-2023-44763
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.2%
CVSS Severity
CVSS v3 Score 5.4
References
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763
- https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail
- https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types
- https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763
Products affected by CVE-2023-44763
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cpe:2.3:a:concretecms:concrete_cms:9.2.1