CVE-2026-29519Public exploitNetwork attack vector

Browser script execution via unencoded URL path

Published Jul 10, 2026 · Updated Jul 10, 2026

Reflected XSS in Lucee 5.3.1.95 through 7.0.0.395 allows remote attackers to execute JavaScript through a crafted URL path. The URL path parser reflects embedded HTML or JavaScript from the request path into the response without output encoding. Exploitation requires a victim to visit the crafted link; script then runs in the Lucee application's browser context, enabling session theft or unauthorized administrative actions.

CVSS severity6.2
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Lucee 5.3.1.95 through 7.0.0.395 allows remote attackers to execute JavaScript through a crafted URL path. The URL path parser reflects embedded HTML or JavaScript from the request path into the response without output encoding. Exploitation requires a victim to visit the crafted link; script then runs in the Lucee application's browser context, enabling session theft or unauthorized administrative actions.

The record

CVE
CVE-2026-29519
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Lucee Association Switzerland
Product
Lucee
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.3.1.95 <=7.0.0.395

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lucee Association Switzerland · Luceeversion=5.3.1.95 <=7.0.0.395

Published CVSS scores

6.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
8.2VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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