Is CVE-2023-42496 in the CISA KEV catalog?

No. CVE-2023-42496 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-42496?

CVE-2023-42496 has a CVSS v3 base score of 9.6 (CRITICAL).

What is the EPSS score for CVE-2023-42496?

CVE-2023-42496 has an EPSS score of 0.61% (45th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-42496?

Upgrade liferay portal to 7.4.3.98 or later.

CVE & CISA-KEV Catalog

CVE-2023-42496

CRITICAL

9.6

CVSS v3

NVD

Description

Reflected cross-site scripting (XSS) vulnerability on the add assignees to a role page in Liferay Portal 7.3.3 through 7.4.3.97, and Liferay DXP 2023.Q3 before patch 6, 7.4 GA through update 92, and 7.3 before update 34 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_roles_admin_web_portlet_RolesAdminPortlet_tabs2 parameter.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

liferay portalNVD

Affected:>= 7.3.3, < 7.4.3.98Fixed in:7.4.3.98CVE-2023-42496derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.61%probability of exploitation in 30 days

45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Vendor Advisory1

liferay.dev

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-28.