Summary
Liferay Portal has Stored Cross-Site Scripting Vulnerability via Message Boards Feature
A Stored cross-site scripting vulnerability in the Liferay Portal 7.4.3.120 through 7.4.3.132, and Liferay DXP 2025.Q2.0 through 2025.Q2.8, 2025.Q1.0 through 2025.Q1.15, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.1 through 2024.Q2.13 and 2024.Q1.9 through 2024.Q1.19 allows an remote authenticated attacker to inject JavaScript through the message boards feature available via the web interface.
Liferay Portal is fixed on the master branch from commit c1b7c6b.
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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In the interim: Validate and encode untrusted input before rendering it as HTML. Applying a Content Security Policy reduces the impact if encoding is bypassed.
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2025-43740? CVE-2025-43740 is a medium-severity cross-site scripting (XSS) vulnerability in com.liferay.portal:release.portal.bom (maven), affecting versions >= 7.4.3.120-ga120, <= 7.4.3.132-ga23. No fixed version is listed yet. 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:release.portal.bom are affected by CVE-2025-43740? com.liferay.portal:release.portal.bom (maven) versions >= 7.4.3.120-ga120, <= 7.4.3.132-ga23 is affected.
- Is there a fix for CVE-2025-43740? No fixed version is listed for CVE-2025-43740 yet. Monitor the advisory for updates and apply mitigations in the interim.
- Is CVE-2025-43740 exploitable, and should I be worried? Whether CVE-2025-43740 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-2025-43740 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-2025-43740? No fixed version is listed yet. In the interim: Validate and encode untrusted input before rendering it as HTML. Applying a Content Security Policy reduces the impact if encoding is bypassed.