CVE-2023-49093

Name: CVE-2023-49093
Creator: NVD / NIST
Published: 2023-12-04T05:15:07.43+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.36%

Last modified Jun 17, 2026

CVE-2023-49093 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. HtmlUnit is a GUI-less browser for Java programs. HtmlUnit is vulnerable to Remote Code Execution (RCE) via XSTL, when browsing the attacker’s webpage. EPSS estimates a 2.36% chance of exploitation in the next 30 days.

Description

HtmlUnit is a GUI-less browser for Java programs. HtmlUnit is vulnerable to Remote Code Execution (RCE) via XSTL, when browsing the attacker’s webpage. This vulnerability has been patched in version 3.9.0

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

2.36%

81.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Htmlunit	Htmlunit	< 3.9.0

References

https://github.com/HtmlUnit/htmlunit/security/advisories/GHSA-37vq-hr2f-g7h7Exploit, Vendor Advisory
https://www.htmlunit.org/changes-report.html#a3.9.0Release Notes
https://github.com/HtmlUnit/htmlunit/security/advisories/GHSA-37vq-hr2f-g7h7Exploit, Vendor Advisory
https://www.htmlunit.org/changes-report.html#a3.9.0Release Notes

Timeline

Published: Dec 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-49093?

How severe is CVE-2023-49093?

CVE-2023-49093 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.36% probability of exploitation in the next 30 days.

How do I fix CVE-2023-49093?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-49093?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST