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CVE-2026-29519— Lucee CFML Server Reflected XSS via URL Path Parsing

Quick assessment

Affected
lucee Lucee
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lucee是Lucee组织开源的一个用 Java 编写的高性能开源 CFML 服务器。 Lucee存在跨站脚本漏洞，该漏洞源于URL路径解析中存在反射型跨站脚本漏洞，允许未经身份验证的远程攻击者通过在请求路径中嵌入HTML或JavaScript有效载荷，在受害者浏览器中执行任意JavaScript。

CVSS 8.2 · High EPSS 0.47% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
lucee Lucee 5.3.1.95≤ 7.0.0.395 affected
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I. Basic Information for CVE-2026-29519

Vulnerability Information
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Vulnerability Title
Lucee CFML Server Reflected XSS via URL Path Parsing
Source: CVE Program / CVE List V5
Vulnerability Description
Lucee CFML Server versions across the 5.3.x, 6.1.x, 6.2.x, and 7.0.x release lines contain a reflected cross-site scripting vulnerability in URL path parsing that allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser by embedding HTML or JavaScript payloads within the request path. Attackers can craft a malicious URL containing injected script content that is reflected in the server's response without proper output encoding, enabling session hijacking or unauthorized actions against the Lucee administrative interface when a victim visits the crafted link.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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
lucee 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lucee是Lucee组织开源的一个用 Java 编写的高性能开源 CFML 服务器。 Lucee存在跨站脚本漏洞，该漏洞源于URL路径解析中存在反射型跨站脚本漏洞，允许未经身份验证的远程攻击者通过在请求路径中嵌入HTML或JavaScript有效载荷，在受害者浏览器中执行任意JavaScript。
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
lucee Lucee 5.3.1.95 ~ 7.0.0.395 -

II. Public POCs for CVE-2026-29519

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: line] [trigger] sending XSS payload against Lucee URL path...
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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Qwen3.6-35B-A3B · 4568 chars
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III. Intelligence Information for CVE-2026-29519

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Vendor Advisories for CVE-2026-29519 (1)

Exploits & Public PoCs for CVE-2026-29519 (1)

IV. Related Vulnerabilities

Same product: Lucee
Same vendor: lucee
Same weakness: CWE-79

V. Comments for CVE-2026-29519

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