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CVE-2023-38693

28
FAUCET Score

CVE-2023-38693 is a critical Remote Code Execution (RCE) vulnerability affecting Lucee Server, a Java-based web application development platform. The vulnerability stems from an XML External Entity (XXE) attack vector within the Lucee REST endpoint. With a CVSS score of 9.8, this flaw allows unauthenticated attackers to achieve full compromise (confidentiality, integrity, availability) with low attack complexity over the network. While no public exploit intelligence or active exploitation has been observed, and community discussion is minimal, the high FAUCET Risk Score of 87/100 indicates significant potential danger. Patches are available in Lucee versions 5.4.3.2, 5.3.12.1, 5.3.7.59, 5.3.8.236, and 5.3.9.173.

Impacted Technologies

VendorProductVersion(s)CPE
LuceeLucee
< 5.3.7.59, >= 5.3.12.0, < 5.3.12.1, >= 5.3.8.0, < 5.3.8.236, >= 5.3.9.0, < 5.3.9.173, >= 5.4.0.0, < 5.4.3.2CNA affected

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.76%
Probability of exploitation in next 30 days
EPSS Percentile
51.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 35th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

mavenpatch availablevia ghsa
Product: org.lucee:luceeFixed in: 5.3.12.1
mavenpatch availablevia ghsa
Product: org.lucee:luceeFixed in: 5.4.3.2
mavenpatch availablevia ghsa
Product: org.lucee:luceeFixed in: 5.3.8.236
mavenpatch availablevia ghsa
Product: org.lucee:luceeFixed in: 5.3.9.173

Vendor Advisories (1)

mavenGHSA-vwjx-mmwm-pwrfcritical

Lucee RCE/XXE Vulnerability

Mar 5, 2025

References

github.com / lucee/Lucee/security/advisories/GHSA-vwjx-mmwm-pwrf