Vulnerability · Published Jul 10, 2026 · Assigned by VulnCheck

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

High 8.2

In plain English

A high-severity cross-site scripting in Lucee from lucee. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.5%top 59.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Public PoC

Official 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.

Affected products (as reported)

Vendor	Product	Versions
lucee	Lucee	5.3.1.95 – through 7.0.0.395

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

References

Researcher Disclosure technical-description, exploit
https://www.vulncheck.com/advisories/lucee-cfml-server-reflected-xss-via-url-path-parsing third-party-advisory