{"id":"CVE-2020-7961","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-7961","generatedAt":"2026-10-31T17:27:17.311Z","title":"Liferay Portal Deserialization of Untrusted Data Vulnerability","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).","published":"2020-03-20T19:15:13.000Z","lastModified":"2026-06-17T03:25:42.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["liferay/liferay portal"],"epss":{"score":0.99905,"percentile":0.99966,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-7961"},"exploits":{"count":1,"verified":true,"firstPublished":"2020-04-16","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":48332,"kind":"exploit","title":"Liferay Portal - Java Unmarshalling via JSONWS RCE (Metasploit)","url":"https://www.exploit-db.com/exploits/48332","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/java/remote/48332.msf","file":"exploits/java/remote/48332.msf","published":"2020-04-16","added":"2020-04-16","updated":"2020-04-16","author":"Metasploit","type":"remote","platform":"java","port":null,"verified":true,"codes":["CVE-2020-7961"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/liferay_java_unmarshalling.rb"}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://portal.liferay.dev/learn/security/known-vulnerabilities","tags":["Broken Link","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271","tags":["Broken Link","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.liferay.dev/learn/security/known-vulnerabilities","tags":["Broken Link","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271","tags":["Broken Link","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7961","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-7961","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}