CVE-2023-44763

Summary

CVE-2023-44763 is a vulnerability affecting Concrete CMS version 9.2.1. This issue allows for Arbitrary File Uploads through the Thumbnail file upload feature, leading to Cross-Site Scripting (XSS) attacks. Notably, despite being one of the allowed file types in the default configuration, the vendor advises customers to exclude "pdf" files from uploads to mitigate this risk.

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