CVE-2025-43770 Liferay Portal vulnerable to Reflected XSS with the referer and forward parameter
Remote attackers can inject JavaScript via null bytes in referer or FORWARD_URL parameters, potentially leading to session hijacking or malicious script execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-43770?
CVE-2025-43770 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 23 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.3, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12 and 7.4 GA through update 92 allows an remote non-authenticated attacker to inject JavaScript into the referer or FORWARD_URL using %00 in those parameters.
Weakness: CWE-79
Which versions are affected by CVE-2025-43770?
2 open source packages ship an affected version, including com.liferay.portal:com.liferay.portal.kernel. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
com.liferay.portal:com.liferay.portal.kernel Maven | All versions | 155.0.0 |
com.liferay.portal:com.liferay.portal.kernel Maven | All versions | 155.0.0 |
Products include Liferay Digital Experience Platform, Liferay Liferay Portal.
How do I fix CVE-2025-43770?
Upgrade com.liferay.portal:com.liferay.portal.kernel to 155.0.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-43770 being exploited?
There is no known exploitation of CVE-2025-43770 in the wild and no public exploit code.
Other vulnerabilities in Liferay Digital Experience Platform
- CVE-2024-8980 Liferay Portal and Liferay DXP Vulnerable to CSRF in the Script Console
- CVE-2023-42496 Liferay Portal and Liferay DXP vulnerable to reflected Cross-site Scripting
- CVE-2023-42498 Liferay Portal Language Override edit screen and Liferay DXP vulnerable to reflected Cross-site Scripting
- CVE-2024-25147 Liferay Portal and Liferay DXP vulnerable to Cross-site Scripting
- CVE-2024-26269 Liferay Portal Frontend JS module's portlet.js and Liferay DXP vulnerable to Cross-site Scripting
Sources
Also known as GHSA-h4m4-xp33-37mj.