CVE-2023-49093

Htmlunit remote code execution

9.8 CRITICALEPSS 2.36%

Published4 Dec 2023

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

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Htmlunit< 3.9.0

Remediation

Fixed in

Htmlunit≥ 3.9.0

Frequently asked

Is CVE-2023-49093 being actively exploited?

CVE-2023-49093 is not in the CISA KEV catalog. Its EPSS exploit probability is 2.36%.

How severe is CVE-2023-49093?

CVE-2023-49093 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 2.36% probability of exploitation.

Which products are affected by CVE-2023-49093?

Affected products include Htmlunit.

How do I fix CVE-2023-49093?

Upgrade affected software to a fixed version, for example Htmlunit 3.9.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-49093 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.