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I. Basic Information for CVE-2026-27613
Vulnerability Information

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Vulnerability Title
CGI Parameter Injection (Bypass of STRICT_CGI_PARAMS and EscapeShellParam)
Source: NVD (National Vulnerability Database)
Vulnerability Description
TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. A vulnerability in versions prior to 2.01 allows unauthenticated remote attackers to bypass the web server's CGI parameter security controls. Depending on the server configuration and the specific CGI executable in use, the impact is either source code disclosure or remote code execution (RCE). Anyone hosting CGI scripts (particularly interpreted languages like PHP) using vulnerable versions of TinyWeb is impacted. The problem has been patched in version 2.01. If upgrading is not immediately possible, ensure `STRICT_CGI_PARAMS` is enabled (it is defined by default in `define.inc`) and/or do not use CGI executables that natively accept dangerous command-line flags (such as `php-cgi.exe`). If hosting PHP, consider placing the server behind a Web Application Firewall (WAF) that explicitly blocks URL query string parameters that begin with a hyphen (`-`) or contain encoded double quotes (`%22`).
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
TinyWeb 参数注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TinyWeb是Konstantin Belyalov个人开发者的一个简单且轻量级 HTTP 服务器。 TinyWeb 2.01之前版本存在参数注入漏洞,该漏洞源于允许未经验证的远程攻击者绕过Web服务器的CGI参数安全控制,可能导致源代码泄露或远程代码执行。
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
VendorProductAffected VersionsCPESubscribe
maximmasiutinTinyWeb < 2.01 -
II. Public POCs for CVE-2026-27613
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III. Intelligence Information for CVE-2026-27613
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IV. Related Vulnerabilities
V. Comments for CVE-2026-27613

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