---
id: CVE-2026-120447
title: >-
  HotGo 2.8.4 through 2.15.1 Authentication Bypass via Client-Set SMS
  Verification Code
summary: >-
  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…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-287
vendor: bufanyun
product: HotGo
affected:
  - HotGo >= 2.8.4 <= 2.15.1
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-06T19:31:14.815473Z'
exploitAvailable: true
published: '2026-11-02'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T19:31:42.257Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120447'
references:
  - url: 'https://github.com/bufanyun/hotgo/issues/240'
  - url: >-
      https://github.com/bufanyun/hotgo/commit/cb57056c746650e6ff86dec1e97d404b63dcfd30
  - url: 'https://vul.yulun.ac.cn/20261102/hotgo/'
  - url: >-
      https://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/logic/sys/sms_log.go
  - url: >-
      https://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/model/input/sysin/sms_log.go
  - url: >-
      https://www.vulncheck.com/advisories/hotgo-through-2.15.1-authentication-bypass-via-client-set-sms-verification-code
    label: >-
      VulnCheck Advisory: HotGo through 2.15.1 Authentication Bypass via
      Client-Set SMS Verification Code
tags:
  - cve.org
  - exploit-available
epss: 0.00531
epssPercentile: 0.45102
ingestedAt: '2026-11-05T19:30:42.885Z'
---

## Overview

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

- `HotGo >= 2.8.4 <= 2.15.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.