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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| OctoPrint | pip | < 1.8.0 | 1.8.0 |
The vulnerability stemmed from improper handling of the 'redirect' parameter in the login endpoint. The pre-patch code in views.py's login function used request.args.get("redirect") without validating the URL structure. The commit added validation using urlparse to check for schemes/netlocs, indicating the original function lacked these protections. As the login flow would reflect this parameter in client-side redirects, this created an XSS vector through crafted redirect URLs containing JavaScript payloads.
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