CVE-2021-33339 json
Liferay Portal Fragment Module and Liferay DXP Vulnerable to Cross-Site Scripting
published 2021-08-04 5 y ago modified 2026-06-17 4 mo ago also GHSA-7pxh-q6jw-6xj8 , EUVD-2021-20047
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven com.liferay.portal:release.portal.bom 7.3.5
- maven com.liferay.portal:release.dxp.bom 7.2.10.fp9
- liferay liferay_portal 7.3.5
- issues.liferay.com/browse/LPE-17102 advisory
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.liferay.portal:release.portal.bom | >=7.2.1, <7.3.5 |
7.3.5 |
| maven | com.liferay.portal:release.dxp.bom | >=7.2.0, <7.2.10.fp9 |
7.2.10.fp9 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
issues.liferay.com
/browse/LPE-17102
web, patch, vendor-advisory
-
portal.liferay.dev
/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120747934
web, release-notes, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-33339
advisory
-
github.com
/liferay/liferay-portal
package
Sources
- CVE List CVE-2021-33339
- GitHub Advisory GHSA-7pxh-q6jw-6xj8
- NVD CVE-2021-33339
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.