CVE-2020-7961
Liferay Portal Deserialization of Untrusted Data Vulnerability
- Published
- Mar 20, 2020
- Updated
- Oct 21, 2025
- Assigning CNA
- mitre
- Evidence observed
- Apr 16, 2020
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 100.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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).
Sources
10- liferay-ga4-rce-researchResearch
Security research on Liferay CE 7.0.3 GA4: pre-auth RCE as root (CVE-2020-7961 class) reproduced end-to-end, plus 16 more findings — 8+ with no known CVE. Agentic loop-hunt: 25 generators, 22 judges, 9 live validators on Docker. Evidence trail + one-go checker included.
- CVE-2020-7961-payloadsExploit
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)
- CVE-2020-7961Exploit
Exploit script for CVE-2020-7961
Responsible use
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