CVE-2023-42628: Liferay Portal and Liferay DXP Vulnerable to XSS in the Wiki Widget

Should you act?

Critical, preconditions apply

Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 2.8%, percentile 86: FIRST’s model estimates a 2.8% chance of exploitation activity in the next 30 days, higher than 86% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
• Needs an account (low (any account)). Exposure depends on who can log in.
• Only applies if your dependency tree includes com.liferay:com.liferay.wiki.web (Maven) < 7.0.95, fixed in 7.0.95; com.liferay.portal:release.dxp.bom (Maven) >= 7.0.10.fp83, <= 7.0.10.fp102, no fixed version listed; com.liferay.portal:release.dxp.bom (Maven) >= 7.1.0, <= 7.1.10.fp28, no fixed version listed; com.liferay.portal:release.dxp.bom (Maven) >= 7.2.0, <= 7.2.10.fp20, no fixed version listed. Check your lockfile, including transitive dependencies.

What it is

Stored cross-site scripting (XSS) vulnerability in the Wiki widget in Liferay Portal 7.1.0 through 7.4.3.87, and Liferay DXP 7.0 fix pack 83 through 102, 7.1 fix pack 28 and earlier, 7.2 fix pack 20 and earlier, 7.3 update 33 and earlier, and 7.4 before update 88 allows remote attackers to inject arbitrary web script or HTML into a parent wiki page via a crafted payload injected into a wiki page's ‘Content’ text field.

From the GitHub advisory

Stored cross-site scripting (XSS) vulnerability in the Wiki widget in Liferay Wiki Web before 7.0.95 from Liferay Portal (7.1.0 through 7.4.3.87), and Liferay DXP 7.0 fix pack 83 through 102, 7.1 fix pack 28 and earlier, 7.2 fix pack 20 and earlier, 7.3 update 33 and earlier, and 7.4 before update 88 allows remote attackers to inject arbitrary web script or HTML into a parent wiki page via a crafted payload injected into a wiki page's ‘Content’ text field.

Weakness type: CWE-79.

Product: com.liferay:com.liferay.wiki.web (Maven) · Assigned by: Liferay · Published: 2023-10-17

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: low (any account)
• User interaction: required (a user must click/open something)
• Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• FIRST EPSS (model of 2026-10-21): 2.78% probability of exploitation activity in the next 30 days; percentile 86.

Timeline

• 2023-10-17 — CVE record published by Liferay
• 2023-10-17 — GitHub-reviewed advisory GHSA-hv45-r2f5-fmhj published (critical)
• 2024-08-02 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

1. liferay.dev liferay.dev

Vulnerability records

1. GitHub Advisory GHSA-hv45-r2f5-fmhj github.com
2. CVE.org record CVE-2023-42628 cve.org
3. NVD entry CVE-2023-42628 nvd.nist.gov

Other references from the CVE record and advisory

1. pentagrid.ch pentagrid.ch

Critical Maven advisories · Today’s Security Digest