---
title: "CVE-2023-42498: Liferay Portal Language Override edit screen and Liferay DXP vulnerable to reflected Cross-site Scripting"
url: https://erroneo.us/security/cve/CVE-2023-42498/
description: "CVE-2023-42498 (com.liferay.portal:release.portal.bom (Maven)): Reflected cross-site scripting (XSS) vulnerability in the Language Override edit screen in…"
type: vulnerability-record
section: "Security Digest"
date_published: 2024-02-21
date_modified: 2026-03-20
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-42498"
kev: false
cvss: 9.6
epss: 0.00611
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-42498: Liferay Portal Language Override edit screen and Liferay DXP vulnerable to reflected Cross-site Scripting

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.6% , percentile 49: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 49% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
- Only applies if your dependency tree includes com.liferay.portal:release.portal.bom (Maven) >= 7.4.3.8, <= 7.4.3.97, fixed in 7.4.3.98 ; com.liferay.portal:release.dxp.bom (Maven) >= 2023.Q3, < 2023.Q3.5, fixed in 2023.Q3.5 ; com.liferay.portal:release.dxp.bom (Maven) >= 7.4.13.u4, <= 7.4.13.u92, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

Reflected cross-site scripting (XSS) vulnerability in the Language Override edit screen in Liferay Portal 7.4.3.8 through 7.4.3.97, and Liferay DXP 2023.Q3 before patch 5, and 7.4 update 4 through 92 allows remote attackers to inject arbitrary web script or HTML via the comliferayportallanguageoverridewebinternalportletPLOPortletkey parameter.

## Affected packages

- Maven `com.liferay.portal:release.portal.bom` >= 7.4.3.8, <= 7.4.3.97 → fixed: 7.4.3.98
- Maven `com.liferay.portal:release.dxp.bom` >= 2023.Q3, < 2023.Q3.5 → fixed: 2023.Q3.5
- Maven `com.liferay.portal:release.dxp.bom` >= 7.4.13.u4, <= 7.4.13.u92 → fixed: none listed

## Affected products (CVE record)

- Liferay Portal: 7.4.3.8 <= 7.4.3.97
- Liferay DXP: 2023.q3.1 <= 2023.q3.4, 7.4.13.u4 <= 7.4.13.u92

## Severity

- Liferay CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.61% probability of exploitation activity in the next 30 days; percentile 49.

## Sources

- [liferay.dev](https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/cve-2023-42498)
- [GitHub Advisory GHSA-73x3-8mrg-5r93](https://github.com/advisories/GHSA-73x3-8mrg-5r93)
- [CVE.org record CVE-2023-42498](https://www.cve.org/CVERecord?id=CVE-2023-42498)
- [NVD entry CVE-2023-42498](https://nvd.nist.gov/vuln/detail/CVE-2023-42498)

---
Source page: https://erroneo.us/security/cve/CVE-2023-42498/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt