Read the docs
TI-2026-23334 Aliases CVE-2026-29519GHSA-frv8-q5jq-3qhq

Lucee CFML Server Reflected XSS via URL Path Parsing

Priority MEDIUM 61CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00472 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
luceeLucee5.3.1.95 – 7.0.0.395—No fix listedCNA
  • Lucee Vendorlucee Affected 5.3.1.95 – 7.0.0.395 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29519
  2. 2026-10-03 Alias added: GHSA-frv8-q5jq-3qhq

References

Exploit 1

  • TI-2021-04407 Remote Code Exploit in Lucee Admin CVSS 3.1CRITICAL 9.8
  • TI-2023-20042 RCE in Lucee REST endpoint CVSS 3.1CRITICAL 9.8
  • TI-2024-36819 Lucee before 5.4.7.3 LTS and 6 before 6.1.1.118, when an attacker can place files on the… CVSS 3.1HIGH 8.8
  • TI-2023-30163 Lucee 5.4.2.17 Authenticated Reflected Cross-Site Scripting via Admin Interfaces CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences