| Package | Affected versions | Patched versions |
|---|---|---|
| FormCMS | < 0.5.7 | 0.5.7 |
| formcms | ≥ 0.5.5, < 0.5.7 | 0.5.7 |
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.
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