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CVE-2026-4770— DOM-Based XSS in TR7's WAF-ASP

Quick assessment

Affected
TR7 Cyber ​​Defense Inc. WAF-ASP
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.

TR7 WAF-ASP是TR7个人开发者的一款Web应用防火墙软件。 TR7 WAF-ASP v1.0.42.239版本至v1.4.0.117之前版本存在跨站脚本漏洞，该漏洞源于对输入中和不当，容易受到基于DOM的跨站脚本攻击。

CVSS 4.6 · Medium EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
TR7 Cyber ​​Defense Inc. WAF-ASP v1.0.42.239< v1.4.0.117 affected
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I. Basic Information for CVE-2026-4770

Vulnerability Information
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Vulnerability Title
DOM-Based XSS in TR7's WAF-ASP
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in TR7 Cyber ​​Defense Inc. Web Application Firewall allows DOM-Based XSS. This issue affects Web Application Firewall: from v1.0.42.239 before v1.4.0.117.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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
TR7 WAF-ASP 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TR7 WAF-ASP是TR7个人开发者的一款Web应用防火墙软件。 TR7 WAF-ASP v1.0.42.239版本至v1.4.0.117之前版本存在跨站脚本漏洞，该漏洞源于对输入中和不当，容易受到基于DOM的跨站脚本攻击。
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
TR7 Cyber ​​Defense Inc. WAF-ASP v1.0.42.239 ~ v1.4.0.117 -

II. Public POCs for CVE-2026-4770

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III. Intelligence Information for CVE-2026-4770

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Vendor Advisories for CVE-2026-4770 (1)

Same Patch Batch · TR7 Cyber ​​Defense Inc. · 2026-07-02 · 3 CVEs total

CVE-2026-4767 9.8 CRITICAL Improper Access Control in TR7's WAF-ASP
CVE-2026-4772 5.4 MEDIUM Stored XSS in TR7's WAF-ASP

IV. Related Vulnerabilities

Same product: WAF-ASP
Same vendor: TR7 Cyber ​​Defense Inc.
Same weakness: CWE-79

V. Comments for CVE-2026-4770

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