CVE-2023-50259

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 `testslack` request handler in `medusa/server/web/home/handler.py` does not validate the user-controlled `slack_webhook` variable and passes it to the `notifiers.slack_notifier.test_notify` method, then `_notify_slack` and finally `_send_slack` method, which sends a POST request to the user-controlled URL on line 103 in `/medusa/notifiers/slack.py`, which leads to a blind server-side request forgery (SSRF). This issue allows for crafting POST requests on behalf of the Medusa server. Version 1.0.19 contains a fix for the issue.

• CWE-918

• https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/notifiers/slack.py#L103Patch
• https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/server/web/home/handler.py#L168Patch
• https://github.com/pymedusa/Medusa/releases/tag/v1.0.19Release Notes
• https://github.com/pymedusa/Medusa/security/advisories/GHSA-8mcr-vffr-jwxvExploit, Vendor Advisory
• https://securitylab.github.com/advisories/GHSL-2023-201_GHSL-2023-202_Medusa/Exploit, Third Party Advisory
• https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/notifiers/slack.py#L103Patch
• https://github.com/pymedusa/Medusa/blob/3d656652ab277e47689483912ed7fc443e7023e8/medusa/server/web/home/handler.py#L168Patch
• https://github.com/pymedusa/Medusa/releases/tag/v1.0.19Release Notes
• https://github.com/pymedusa/Medusa/security/advisories/GHSA-8mcr-vffr-jwxvExploit, Vendor Advisory
• https://securitylab.github.com/advisories/GHSL-2023-201_GHSL-2023-202_Medusa/Exploit, Third Party Advisory

Published

Dec 22, 2023

Last Modified

Jun 17, 2026

Status

Modified

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