CVE-2021-38403— Delta Electronics DIALink
Quick assessment
Affected
Delta Electronics DIALink
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Delta Electronics DiaLink是中国Delta Electronics公司的用于为从数控机床和 PLC 控制的设备采集现场设备运行数据，为上层管理系统提供统一接口，实现数据可视化，有效揭示生产参数和运行状态。 Delta Electronics DIALink 1.2.4.0 及其之前版本存在跨站脚本漏洞，该漏洞源于软件对于API参数缺少有效的过滤转义，经过身份验证的攻击者可利用该漏洞将任意JavaScript代码注入API维护的参数供应商，这可能允许攻击者实现远程执行代码。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-38403
Vulnerability Information
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Vulnerability Title
Delta Electronics DIALink
Source: CVE Program / CVE List V5
Vulnerability Description
Delta Electronics DIALink versions 1.2.4.0 and prior is vulnerable to cross-site scripting because an authenticated attacker can inject arbitrary JavaScript code into the parameter supplier of the API maintenance, which may allow an attacker to remotely execute code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Delta Electronics DiaLink 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Delta Electronics DiaLink是中国Delta Electronics公司的用于为从数控机床和 PLC 控制的设备采集现场设备运行数据，为上层管理系统提供统一接口，实现数据可视化，有效揭示生产参数和运行状态。 Delta Electronics DIALink 1.2.4.0 及其之前版本存在跨站脚本漏洞，该漏洞源于软件对于API参数缺少有效的过滤转义，经过身份验证的攻击者可利用该漏洞将任意JavaScript代码注入API维护的参数供应商，这可能允许攻击者实现远程执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Delta Electronics | DIALink | All ~ 1.2.4.0 | - |
|
II. Public POCs for CVE-2021-38403
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-38403 (1)
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-294-02 x_refsource_MISC
Same Patch Batch · Delta Electronics · 2021-11-03 · 10 CVEs total
| CVE-2021-38418 | 8.8 HIGH | Delta Electronics DIALink |
| CVE-2021-38422 | 7.8 HIGH | Delta Electronics DIALink |
| CVE-2021-38420 | 7.8 HIGH | Delta Electronics DIALink |
| CVE-2021-38416 | 7.8 HIGH | Delta Electronics DIALink |
| CVE-2021-38424 | 5.9 MEDIUM | Delta Electronics DIALink |
| CVE-2021-38411 | 5.5 MEDIUM | Delta Electronics DIALink |
| CVE-2021-38407 | 5.5 MEDIUM | Delta Electronics DIALink |
| CVE-2021-38428 | 5.5 MEDIUM | Delta Electronics DIALink |
| CVE-2021-38488 | 5.5 MEDIUM | Delta Electronics DIALink |
IV. Related Vulnerabilities
Same product: DIALink
-
CVE-2025-58320
DIALink - Directory Traversal Authentication Bypass Vulnerab -
CVE-2025-58321
DIALink - Directory Traversal Authentication Bypass Vulnerab -
CVE-2022-2969
ICSA-22-307-03 Delta Industrial Automation DIALink Path trav -
CVE-2021-38488
Delta Electronics DIALink -
CVE-2021-38416
Delta Electronics DIALink
Same vendor: Delta Electronics
-
CVE-2026-1361
ASDA-Soft Stack-based Buffer Overflow Vulnerability -
CVE-2026-0975
DIAView - Command Injection Vulnerability -
CVE-2025-62581
DIAView - Authentication Bypass Vulnerability -
CVE-2025-62582
DIAView - Authentication Bypass Vulnerability -
CVE-2025-15359
DVP-12SE11T - Out-of-bound memory write Vulnerability
Same weakness: CWE-79
-
CVE-2026-66882
Reflected XSS in AshAuthentication confirmation and magic li -
CVE-2026-18512
TranslatePress <= 3.2.6 - Authenticated (Subscriber+) Stored -
CVE-2026-18328
Forminator Forms <= 1.57.0 - Unauthenticated DOM-Based Cross -
CVE-2026-18100
MetForm <= 4.1.8 - Authenticated (Contributor+) Stored Cross -
CVE-2026-18323
Forminator Forms <= 1.57.0.2 - Unauthenticated Stored Cross-
V. Comments for CVE-2021-38403
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