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CVE-2020-7961: Liferay Portal Deserialization of Untrusted Data Vulnerability

criticalknown exploitedpublic exploitCVE-2020-7961
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services.

CSIRTS triage

vendor: Liferayproduct: Liferay PortalUnsafe deserialization
What
A deserialization vulnerability allows remote code execution via JSON web services.
Who is affected
Users of Liferay Portal.
Urgency
Remediation is urgent as the vulnerability is actively exploited and critical in severity.
Action
Update to the latest version of Liferay Portal.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-7961

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-7961coverage & exploitation statusNVD · CVE.org

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