Summary
Liferay Portal has stored cross-site scripting (XSS) vulnerability
A stored cross-site scripting (XSS) vulnerability in Liferay Portal 7.4.0 through 7.4.3.111, and older unsupported versions, and Liferay DXP 2023.Q4.0, 2023.Q3.1 through 2023.Q3.4, 7.4 GA through update 92, 7.3 GA through update 35, and older unsupported versions allows remote authenticated attackers with the instance administrator role to inject arbitrary web script or HTML into all pages via a crafted payload injected into the Instance Configuration's (1) CDN Host HTTP text field or (2) CDN Host HTTPS text field.
Impact
Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2025-43794? CVE-2025-43794 is a medium-severity cross-site scripting (XSS) vulnerability in com.liferay.portal:com.liferay.portal.impl (maven), affecting versions < 99.0.0. It is fixed in 99.0.0. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- Which versions of com.liferay.portal:com.liferay.portal.impl are affected by CVE-2025-43794? com.liferay.portal:com.liferay.portal.impl (maven) versions < 99.0.0 is affected.
- Is there a fix for CVE-2025-43794? Yes. CVE-2025-43794 is fixed in 99.0.0. Upgrade to this version or later.
- Is CVE-2025-43794 exploitable, and should I be worried? Whether CVE-2025-43794 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2025-43794 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2025-43794? Upgrade
com.liferay.portal:com.liferay.portal.implto 99.0.0 or later.