CVE-2021-33337 Liferay Portal and Liferay DXP Cross-site scripting (XSS) vulnerability in the Document Library module
Remote attackers can inject arbitrary web script or HTML via the Document Library module, potentially leading to session hijacking or malicious actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-33337?
CVE-2021-33337 is a medium-severity cross-site scripting vulnerability in Liferay Digital Experience Platform, published on 4 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cross-site scripting (XSS) vulnerability in the Document Library module's add document menu in Liferay Portal 7.3.0 through 7.3.4, and Liferay DXP 7.1 before fix pack 20, and 7.2 before fix pack 9, allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_document_library_web_portlet_DLAdminPortlet_name parameter.
Weakness: CWE-79
Which versions are affected by CVE-2021-33337?
6 open source packages ship an affected version, including com.liferay.portal:release.dxp.bom and com.liferay:com.liferay.document.library.web. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
com.liferay.portal:release.dxp.bom Maven | From 7.1.0 | 7.1.10.fp20 |
com.liferay.portal:release.dxp.bom Maven | From 7.1.0 | 7.1.10.fp20 |
com.liferay.portal:release.dxp.bom Maven | From 7.2.0 | 7.2.10.fp9 |
com.liferay.portal:release.dxp.bom Maven | From 7.2.0 | 7.2.10.fp9 |
com.liferay:com.liferay.document.library.web Maven | From 5.0.6 | 5.0.54 |
com.liferay:com.liferay.document.library.web Maven | From 5.0.6 | 5.0.54 |
Products include Liferay Digital Experience Platform, Liferay Liferay Portal.
How do I fix CVE-2021-33337?
Upgrade com.liferay.portal:release.dxp.bom to a fixed version for your release line: 7.1.10.fp20 or 7.2.10.fp9.
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-2021-33337 being exploited?
There is no known exploitation of CVE-2021-33337 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-v88g-7fx4-9q7f.