HOMEVULNERABILITIESCVE-2020-28884
HIGH

CVE-2020-28884

CWE-78Published: January 28, 2022· Updated: Jun 17, 2026

7.2
CVSS v3.1

Official Description

Liferay Portal Server tested on 7.3.5 GA6, 7.2.0 GA1 is affected by OS Command Injection. An administrator user can inject Groovy script to execute any OS command on the Liferay Portal Sever. NOTE: The developer disputes this as a vulnerability since it is a feature for administrators to run groovy scripts and therefore not a design flaw.

NVD Source

Technical Analysis

CVE-2020-28884 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

liferay1 product(s)
liferay portal
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://learn.liferay.com/dxp/latest/en/system-administration/using-the-script-engine/running-scripts-from-the-script-console.html
ADVISORYhttps://learn.liferay.com/dxp/latest/en/system-administration/using-the-script-engine/running-scripts-from-the-script-console.html

All References (4)

→
https://learn.liferay.com/dxp/latest/en/system-administration/using-the-script-engine/running-scripts-from-the-script-console.htmlVendor Advisory
→
https://medium.com/%40tranpdanh/some-way-to-execute-os-command-in-liferay-portal-84498bde18d3
→
https://learn.liferay.com/dxp/latest/en/system-administration/using-the-script-engine/running-scripts-from-the-script-console.htmlVendor Advisory
→
https://medium.com/%40tranpdanh/some-way-to-execute-os-command-in-liferay-portal-84498bde18d3

Quick Facts

CVE IDCVE-2020-28884
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedJan 28, 2022

Related CVEs (CWE-78)

CVE-2014-2967
10.0
CVE-2014-1987
10.0
CVE-2014-3007
10.0
CVE-2012-1166
10.0
CVE-2014-2935
10.0
CVE-2014-4823
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-28884 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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