Mori Sugimoto

**Name of the Vulnerable Software and Affected Versions** Drupal core (affected versions not specified) **Description** The Media module supports oEmbed, which utilizes two discovery mechanisms: `providers.json` and URL discovery. The URL discovery code can be exploited to trick the system into making unauthorized server-side requests to any arbitrary URL. This is a Server-Side Request Forgery (SSRF), a flaw where an attacker can force a server to send requests to an unintended location. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Drupal core versions prior to 8.3.4 Drupal core versions prior to 7.56 **Description** The issue allows an access bypass, where private files uploaded by an anonymous user are visible to all anonymous users, rather than just the user who uploaded them. This occurs on sites that allow anonymous users to upload files into a private file system. **Recommendations** For Drupal core versions prior to 8.3.4, update to version 8.3.4 or later. For Drupal core versions prior to 7.56, update to version 7.56 or later.