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CVE-2021-33339

19
FAUCET Score

CVE-2021-33339 describes a Cross-Site Scripting (XSS) vulnerability within the Fragment module of Liferay Portal versions 7.2.1 through 7.3.4 and Liferay DXP 7.2 prior to fix pack 9. This medium-severity vulnerability (CVSS 4.8) allows remote attackers to inject arbitrary web script or HTML through the _com_liferay_site_admin_web_portlet_SiteAdminPortlet_name parameter, requiring high privileges and user interaction for exploitation. While the potential impact is limited to low confidentiality and integrity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.2CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.2:-:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_1:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_2:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_3:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:liferay:digital_experience_platform:7.2:fix_pack_4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.8MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 85th percentile among its peer group of 4,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: com.liferay.portal:release.portal.bomFixed in: 7.3.5
mavenpatch availablevia ghsa
Product: com.liferay.portal:release.dxp.bomFixed in: 7.2.10.fp9

Vendor Advisories (1)

mavenGHSA-7pxh-q6jw-6xj8medium

Liferay Portal Fragment Module and Liferay DXP Vulnerable to Cross-Site Scripting

May 24, 2022

References

issues.liferay.com / browse/LPE-17102
PatchVendor Advisory
portal.liferay.dev / learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120747934
Release NotesVendor Advisory