CVE-2021-33339
Liferay Portal Fragment Module and Liferay DXP Vulnerable to Cross-Site Scripting
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
- Record
CVE-2021-33339- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
- Record
CVE-2021-33339- Updated
- 2026-11-02
EUVDEUVD-2021-20047 No score
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
- Record
EUVD-2021-20047- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7pxh-q6jw-6xj8
Liferay Portal Fragment Module and Liferay DXP Vulnerable to Cross-Site Scripting
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
- Record
GHSA-7pxh-q6jw-6xj8- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
- Record
CVE-2021-33339- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-7pxh-q6jw-6xj8
Liferay Portal Fragment Module and Liferay DXP Vulnerable to Cross-Site Scripting
Cross-site scripting (XSS) vulnerability in the Fragment module in Liferay Portal 7.2.1 through 7.3.4, and Liferay DXP 7.2 before fix pack 9 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter.
- Record
GHSA-7pxh-q6jw-6xj8- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
com.liferay.portal:release.portal.bomMaven |
7.2.1 to 7.3.4 | 7.3.5 |
com.liferay.portal:release.dxp.bomMaven |
7.2.0 up to 7.2.10.fp9 | 7.2.10.fp9 |
com.liferay.portal:release.portal.bomMaven |
7.2.1 up to 7.3.5, plus listed versions 7.2.1-17.3.07.3.0-17.3.17.3.1-1 Show 5 moreShow less7.3.27.3.2-17.3.37.3.3-17.3.4 |
7.3.5 |
com.liferay.portal:release.dxp.bomMaven |
7.2.0 up to 7.2.10.fp9, plus listed versions 7.2.17.2.107.2.10.fp17.2.10.fp1-17.2.10.fp2 Show 6 moreShow less7.2.10.fp37.2.10.fp47.2.10.fp57.2.10.fp67.2.10.fp77.2.10.fp8 |
7.2.10.fp9 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33339 is a medium vulnerability (CVSS 4.8) in Liferay Portal, published August 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.67%, the 52nd percentile. Fixed in com.liferay.portal:release.portal.bom 7.3.5.