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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.

PUBLISHED Reserved 2026-03-04 | Published 2026-07-10 | Updated 2026-07-14 | Assigner VulnCheck




MEDIUM: 6.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

HIGH: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
affected

5.3.1.95 (custom)
affected

Credits

Fouad Milat (lavado) finder

VulnCheck finder

References

github.com/L4V4D0/CVE-2026-29519-Lucee-Reflected-XSS (Researcher Disclosure) technical-description exploit

www.vulncheck.com/...rver-reflected-xss-via-url-path-parsing third-party-advisory

cve.org (CVE-2026-29519)

nvd.nist.gov (CVE-2026-29519)

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