| Package | Affected versions | Patched versions |
|---|---|---|
| copyparty | < 1.18.7 | 1.18.7 |
| copyparty | < 1.18.7 | 1.18.7 |
Unauthorized reflected Cross-Site-Scripting when accessing the URL for recent uploads with the filter parameter containing JavaScript code.
When accessing the recent uploads page at /?ru, users can filter the results using an input field at the top. This field appends a filter parameter to the URL, which reflects its value directly into a <script> block without proper escaping.
This vulnerability allows for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users, enabling unwanted actions in the victims browser.
A URL like this will execute alert(1):
https://127.0.0.1:3923/?ru&filter=</script><script>alert(1)</script>
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