Vulnerability details
CVE-2026-120447
bufanyun HotGo
HotGo 2.8.4 through 2.15.1 Authentication Bypass via Client-Set SMS Verification Code
CVSS 4.0
9.2Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.2Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| bufanyun | HotGo | 2.8.4 ≤ v ≤ 2.15.1 | CVEProject cvelistV5 (CNA) |
References and advisories
6- 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
- https://www.vulncheck.com/advisories/hotgo-through-2.15.1-authentication-bypass-via-client-set-sms-verification-code third-party-advisory
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Details
- Published
- 2026-11-02
- Last updated
- 2026-11-06
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 35 · Medium
Exploit prediction (EPSS)
0.53%
Probability of exploitation in 30 days
45.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-287Improper Authentication