CVE-2026-120447

Description

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.

Overview

State: PUBLISHED
Assigner (CNA): VulnCheck
CVSS severity: CRITICAL
CVSS score: 9.2 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Effective score: 9.2 / 10 CRITICAL source: CNA overview
CWE(s): CWE-287
Reserved: 2026-11-02
Published: 2026-11-02 14:29 UTC
Last updated: 2026-11-02 23:40 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/120xxx/CVE-2026-120447.json
Linked Threat: CVE-2026-120447 — HotGo 2.8.4 through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-115207

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Affected products (1)

Vendor	Product	Versions	Platforms
bufanyun	HotGo	`2.8.4` (affected)	—

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

https://github.com/bufanyun/hotgo/issues/240 issue-tracking
https://github.com/bufanyun/hotgo/commit/cb57056c746650e6ff86dec1e97d404b63dcfd30 patch
https://vul.yulun.ac.cn/20261102/hotgo/ exploit
https://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/logic/sys/sms_log.go technical-description
https://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/model/input/sysin/sms_log.go technical-description
VulnCheck Advisory: HotGo through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-120447.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "HotGo",
          "repo": "https://github.com/bufanyun/hotgo",
          "vendor": "bufanyun",
          "versions": [
            {
              "lessThanOrEqual": "2.15.1",
              "status": "affected",
              "version": "2.8.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Wu Yulun"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Xingzhi Ruan"
        }
      ],
      "datePublic": "2026-11-02T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.2,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-02T23:40:44.857Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/bufanyun/hotgo/issues/240"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/bufanyun/hotgo/commit/cb57056c746650e6ff86dec1e97d404b63dcfd30"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://vul.yulun.ac.cn/20261102/hotgo/"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/logic/sys/sms_log.go"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/bufanyun/hotgo/blob/269b2f9e435cf8ff6b18d53bc053a905f4e02d11/server/internal/model/input/sysin/sms_log.go"
        },
        {
          "name": "VulnCheck Advisory: HotGo through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/hotgo-through-2.15.1-authentication-bypass-via-client-set-sms-verification-code"
        }
      ],
      "title": "HotGo 2.8.4 through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-120447",
    "datePublished": "2026-11-02T14:29:06.746Z",
    "dateReserved": "2026-11-02T12:42:18.726Z",
    "dateUpdated": "2026-11-02T23:40:44.857Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}