Description

MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.

Related CPE's

Could not find any relations

References

https://github.com/yincongcyincong/MuseBot

https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28

https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88

https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681

https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae

https://github.com/yincongcyincong/MuseBot/issues/61

https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass

https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key

Weaknesses

[email protected]

Primary
CWE-1394

CVSS impact metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8 · Critical

Information

Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-30T15:16:50.197Z

5 hours ago

Last modified

2026-10-30T19:23:25.493Z

1 hour ago