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CVE-2025-56236

Description

FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature. Authenticated users can upload .html files containing malicious JavaScript, which are accessible via a public URL. When a privileged user accesses the file, the script executes in their browser context.

POC

Reference

- https://github.com/FormCms/FormCms/issues/27

Github

- https://github.com/fkie-cad/nvd-json-data-feeds