---
id: "CVE-2026-120447"
kind: "vulnerability"
aliases: ["CVE-2026-120447"]
title: "HotGo: SMS login bypass lets attackers take over accounts, including admins"
severity: "critical"
cvss: 9.2
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["hotgo", "other", "self-hosted", "sms-login"]
not_affected_if: ["version-after-2.15.1"]
published_at: "2026-11-02T15:17:27+00:00"
first_seen_at: "2026-11-02T15:24:02+00:00"
updated_at: "2026-11-02T15:25:44+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120447", "first_seen_at": "2026-11-02T15:24:02+00:00"}]
---

# HotGo: SMS login bypass lets attackers take over accounts, including admins

HotGo through version 2.15.1 accepts a Code field on its SMS send endpoint, so an attacker can choose the login code. Knowing a user's mobile number is enough to sign in as that user, including administrators.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the HotGo version in use; versions through `2.15.1` are described as affected.
- Look for the `/admin/sms/send` endpoint and whether it accepts a `Code` field from requests.

## Fix

- Patch available per the linked GitHub reference; the fixed version is unknown from the sources.

## Timeline

- 2026-11-02T15:24:02+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120447

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/hotgo-through-2.15.1-authentication-bypass-via-client-set-sms-verification-code
- [fix] Patch: github.com https://github.com/bufanyun/hotgo/commit/cb57056c746650e6ff86dec1e97d404b63dcfd30

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_