CVE-2020-15278

HIGH7.7EPSS 0.26%

Unauthorized privilege escalation in Mod module

Published: 10/27/2020Modified: 3/13/2026

Description

### Impact An unauthorized privilege escalation exploit has been discovered in the Mod module: this exploit allows Discord users with a high privilege level within the guild to bypass hierarchy checks when the application is in a specific condition that is beyond that user's control. By abusing this exploit, it's possible to perform destructive actions within the guild the user has high privileges in. ### Patches This exploit has been fixed on version & ``3.4.1``. ### Workarounds Unloading the Mod module with ``unload mod`` __or__, disabling the ``massban`` command with ``command disable global massban`` can render this exploit not accessible. We still highly recommend updating to ``3.4.1`` to completely patch this issue. ### References * https://github.com/Cog-Creators/Red-DiscordBot/commit/726bfd38adfdfaef760412a68e01447b470f438b ### For more information If you have any questions or comments about this advisory: * Open an issue in [Cog-Creators/Red-DiscordBot](https://github.com/Cog-Creators/Red-DiscordBot) * Over on our [Discord server](https://discord.gg/red)

Affected packages (2)

CVSS scores

SourceVersionSeverityVector
osvCVSS 4.0—CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
osvCVSS 3.1HIGH7.7CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

References (6)