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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| rdiffweb | pip | < 2.4.7 | 2.4.7 |
The vulnerability stemmed from handling user settings actions without CSRF protections. The pre-patch code in pref_general.py's render_prefs_panel function executed actions like 'set_profile_info' based solely on the 'action' parameter, regardless of HTTP method. The fix added a critical cherrypy.request.method == 'POST' check, indicating the original vulnerability allowed non-POST requests to modify user settings. This matches classic CSRF patterns where attackers can forge GET requests to execute privileged actions.