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I. Basic Information for CVE-2026-35055
Vulnerability Information

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Vulnerability Title
XenForo Cross-Site Scripting via Lightbox in Posts
Source: NVD (National Vulnerability Database)
Vulnerability Description
XenForo before 2.3.9 and before 2.2.18 is vulnerable to cross-site scripting (XSS) related to lightbox usage in posts. An attacker can inject malicious scripts that execute when users interact with post content displayed in the lightbox.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
Xenforo 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xenforo是Xenforo公司的一个论坛软件。 XenForo 2.3.9之前版本和2.2.18之前版本存在跨站脚本漏洞,该漏洞源于帖子中灯箱使用存在跨站脚本,可能导致攻击者注入恶意脚本。
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
VendorProductAffected VersionsCPESubscribe
XenForoXenForo 2.3.0 ~ 2.3.9 -
II. Public POCs for CVE-2026-35055
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III. Intelligence Information for CVE-2026-35055
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IV. Related Vulnerabilities
V. Comments for CVE-2026-35055

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