CVE-2026-120447

HotGo 2.8.4 through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code

HotGo 2.8.4 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.

Affected

bufanyun · HotGo

CVSS v4.0 VULNCHECK

9.2 CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.53% chance of exploitation in the next 30 days, 45th percentile

Published

2026-11-02

Proof-of-concept exploits (1)

• https://vul.yulun.ac.cn/20261102/hotgo/snapshot

CVE references

• bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/logic/sys/sm…REFERENCE
• bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/model/input/…REFERENCE
• bufanyun/hotgo/commit/cb57056c746650e6ff86dec1e97d404b63dcfd30PATCH
• bufanyun/hotgo/issues/240REFERENCE
• https://vul.yulun.ac.cn/20261102/hotgoREFERENCE
• https://www.vulncheck.com/advisories/hotgo-through-2.15.1-authentication-bypass-via-clien…ADVISORY

References

• CVE Record
• NVD entry