CVE-2020-7961
CRITICAL9.8⚠ KEVEPSS 94.4%Deserialization of Untrusted Data in Liferay Portal
Published: 5/24/2022Modified: 10/22/2025Added to CISA KEV: 11/3/2021
Description
Deserialization of Untrusted Data in Liferay Portal prior to 7.2.1 CE GA2 allows remote attackers to execute arbitrary code via JSON web services (JSONWS).
Affected packages (1)
- Maven/com.liferay.portal:com.liferay.portal.kernelfrom 0, < 4.35.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H |
References (9)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-7961
- PATCHhttps://github.com/liferay/liferay-portal
- WEBhttp://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html
- WEBhttp://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html
- WEBhttps://github.com/liferay/liferay-portal/blob/7.2.1-ga2/portal-kernel/bnd.bnd
- WEBhttps://portal.liferay.dev/learn/security/known-vulnerabilities
- WEBhttps://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271
- WEBhttps://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet
- WEBhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7961