Impact

Due to a bug in Red's Core API, 3rd-party cogs using the @commands.can_manage_channel() command permission check without additional permission controls may authorize a user to run a command even when that user doesn't have permissions to manage a channel.
None of the core commands or core cogs are affected. The maintainers of the project are not aware of any public 3rd-party cog utilizing this API at the time of writing this advisory.

The @commands.mod_or_can_manage_channel(), @commands.admin_or_can_manage_channel(), and @commands.guildowner_or_can_manage_channel() command permission checks are unaffected.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/AU:Y/R:U/RE:L

Patches

The problem was patched in PR #6398 and later released in version 3.5.10.

Workarounds

Any cog using the @commands.can_manage_channel() command permission check should be unloaded until an upgrade to a patched version can be performed.

References

Cog-Creators/Red-DiscordBot#6398
https://github.com/Cog-Creators/Red-DiscordBot/releases/tag/3.5.10
https://pypi.org/project/Red-DiscordBot/3.5.10/

References

• GHSA-5jq8-q6rj-9gq4
• Cog-Creators/Red-DiscordBot#6398
• Cog-Creators/Red-DiscordBot@0b0b23b
• https://nvd.nist.gov/vuln/detail/CVE-2024-39905