What is CVE-2022-42124?

CVE-2022-42124 is a high-severity vulnerability in Liferay Digital Experience Platform, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2022-11-15.

How severe is CVE-2022-42124?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Liferay Digital Experience Platform

CVE-2022-42124

ReDoS vulnerability in LayoutPageTemplateEntryUpgradeProcess in Liferay Portal 7.3.2 through 7.4.3.4 and Liferay DXP 7.2 fix pack 9 through fix pack 18, 7.3 before update 4, and DXP 7.4 GA allows remote attackers to consume an excessive amount of server resources via a crafted payload injected into the 'name' field of a layout prototype.

Vulnerability class: ReDoS (Regular Expression Denial of Service)

Published 2022-11-15 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.001

Affected products

Liferay Digital Experience Platform — versions 7.2, 7.3, 7.4
Liferay Portal

Weakness classification (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

References

af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5m… (Vendor Advisory)
issues.liferay.com/browse/LPE-17435 (Vendor Advisory)
issues.liferay.com/browse/LPE-17535 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-42124?: CVE-2022-42124 is a high-severity vulnerability in Liferay Digital Experience Platform, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2022-11-15.
How severe is CVE-2022-42124?: High severity. CVSS v3 base score is 7.5 out of 10.