CVE-2023-50258 Information

Description

Medusa is an automatic video library manager for TV shows. Versions prior to 1.0.19 are vulnerable to unauthenticated blind server-side request forgery (SSRF). The testDiscord request handler in medusa/server/web/home/handler.py does not validate the user-controlled discord_webhook variable and passes it to the notifiers.discord_notifier.test_notify method then _notify_discord and finally _send_discord_msg method which sends a POST request to the user-controlled URL on line 64 in /medusa/notifiers/discord.py which leads to a blind server-side request forgery. This issue allows for crafting POST requests on behalf of the Medusa server. Version 1.0.19 contains a fix for the issue.

Reference

https://github.com/pymedusa/Medusa/security/advisories/GHSA-3hph-6586-qv9g https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/notifiers/discord.py#L64 https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/server/web/home/handler.py#L158 https://github.com/pymedusa/Medusa/releases/tag/v1.0.19 https://securitylab.github.com/advisories/GHSL-2023-201_GHSL-2023-202_Medusa/