HotGo through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code

Summary

HotGo through 2.15.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to choose the SMS login verification code by supplying the Code field to /admin/sms/send. Attackers who know a user's mobile number can set a known code and sign in through /admin/site/mobileLogin to take over accounts, including administrators.

Remediation

1. Inventory every bufanyun HotGo deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Patchhttps://github.com/bufanyun/hotgo/commit/cb57056c746650e6ff86dec1e97d404b63dcfd30
• Advisoryhttps://www.vulncheck.com/advisories/hotgo-through-2.15.1-authentication-bypass-via-client-set-sms-verification-code
• Referencehttps://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/logic/sys/sms_log.go
• Referencehttps://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/model/input/sysin/sms_log.go
• Referencehttps://github.com/bufanyun/hotgo/issues/240
• Referencehttps://vul.yulun.ac.cn/20261102/hotgo/