CVE-2026-65697— Fathom Lite 1.3.1 Stored XSS via /collect Endpoint
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I. Basic Information for CVE-2026-65697
Vulnerability Information
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Vulnerability Title
Fathom Lite 1.3.1 Stored XSS via /collect Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Fathom Lite through 1.3.1 contains a stored cross-site scripting vulnerability in the analytics collection endpoint that allows unauthenticated attackers to inject a javascript: URI into the Top Pages dashboard by supplying a crafted hostname and pathname to the unauthenticated /collect endpoint. The parseHostname and parsePathname functions perform no URI scheme validation, allowing a javascript: hostname combined with a newline-prefixed pathname to be stored and later rendered as an anchor href in the authenticated dashboard without sanitization, enabling session hijacking and full account takeover when an operator clicks the poisoned entry.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
Fathom Analytics Fathom Lite 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fathom Analytics Fathom Lite是Fathom Analytics组织开源的一个简单且注重隐私的Google Analytics替代方案。 Fathom Analytics Fathom Lite 1.3.1及之前版本存在跨站脚本漏洞，该漏洞源于分析收集端点的parseHostname和parsePathname函数未执行URI方案验证，允许未经身份验证的攻击者通过向未经验证的/collect端点提供特制的hostname和pathname，将javascript: URI注入To
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-2026-65697
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Security Blog Posts for CVE-2026-65697 (1)
Other References for CVE-2026-65697 (1)
IV. Related Vulnerabilities
Same weakness: CWE-79
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V. Comments for CVE-2026-65697
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