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I. Basic Information for CVE-2025-6496
Vulnerability Information

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Vulnerability Title
HTACG tidy-html5 parser.c InsertNodeAsParent null pointer dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been declared as problematic. This vulnerability affects the function InsertNodeAsParent of the file src/parser.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
HTACG HTML Tidy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HTACG HTML Tidy是HTML Tidy Advocacy Community Group开源的一个 HTML 工具。 HTACG HTML Tidy 5.8.0版本存在安全漏洞,该漏洞源于文件src/parser.c中函数InsertNodeAsParent存在空指针取消引用。
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
HTACGtidy-html5 5.8.0 -
II. Public POCs for CVE-2025-6496
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III. Intelligence Information for CVE-2025-6496
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