CVE-2021-47708
COMMAX Smart Home IoT Control System SQL Injection Authentication Bypass
- State
- Published
- Severity
- 9.3 Critical
- Published
- Dec 9, 2025
- Updated
- Jul 15, 2026
- Reserved
- Dec 5, 2025
Description
COMMAX Smart Home System CDP-1020n contains an SQL injection vulnerability that allows attackers to bypass authentication by injecting arbitrary SQL code through the 'id' parameter in 'loginstart.asp'. Attackers can exploit this by sending a POST request with malicious 'id' values to manipulate database queries and gain unauthorized access.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products
| Product | Versions |
|---|---|
Smart Home IoT Control SystemCOMMAX Co., Ltd. |
|
References
- ExploitDB-50207exploit
- Official Product Homepageproduct
- Zero Science Lab Disclosure (ZSL-2021-5662)third-party-advisory
- Zero Science GitHub Repositoryproduct
- VulnCheck Advisory: COMMAX Smart Home IoT Control System SQL Injection Authentication Bypassthird-party-advisory
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