CVE-2025-4852— TOTOLINK A3002R VPN Page cross site scripting
Quick assessment
Affected
TOTOLINK A3002R
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.
TOTOLINK A3002R是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK A3002R 2.1.1-B20230720.1011版本存在代码注入漏洞，该漏洞源于对组件VPN Page中参数Comment的错误操作导致跨站脚本。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-4852
Vulnerability Information
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Vulnerability Title
TOTOLINK A3002R VPN Page cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as problematic, has been found in TOTOLINK A3002R 2.1.1-B20230720.1011. This issue affects some unknown processing of the component VPN Page. The manipulation of the argument Comment leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/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
TOTOLINK A3002R 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A3002R是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 TOTOLINK A3002R 2.1.1-B20230720.1011版本存在代码注入漏洞，该漏洞源于对组件VPN Page中参数Comment的错误操作导致跨站脚本。
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
II. Public POCs for CVE-2025-4852
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · TOTOLINK · 2025-05-18 · 4 CVEs total
| CVE-2025-4851 | 6.3 MEDIUM | TOTOLINK N300RH cstecgi.cgi setUploadUserData command injection |
| CVE-2025-4850 | 6.3 MEDIUM | TOTOLINK N300RH cstecgi.cgi setUnloadUserData command injection |
| CVE-2025-4849 | 6.3 MEDIUM | TOTOLINK N300RH cstecgi.cgi CloudACMunualUpdateUserdata command injection |
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V. Comments for CVE-2025-4852
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