What is CVE-2026-29519?

CVE-2026-29519 is a high-severity vulnerability in Lucee, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-07-10.

How severe is CVE-2026-29519?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Lucee

CVE-2026-29519

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…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Lucee — versions 5.3.1.95

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-29519?: CVE-2026-29519 is a high-severity vulnerability in Lucee, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-07-10.
How severe is CVE-2026-29519?: High severity. CVSS v3 base score is 8.2 out of 10.