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Fencer Vulns
critical 9.8

CVE-2019-16891 in the critical feed json

Liferay Portal Allows RCE via Deserialization of a JSON Payload

published 2019-10-04 7 y ago modified 2026-06-17 4 mo ago also GHSA-372h-p48h-xw8q , EUVD-2019-7390

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
44.7%
EPSS 44.7% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

Patch / fix

  • maven com.liferay.portal:release.portal.bom 7.1.1

Exploit prediction

44.74% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • youtube.com https://www.youtube.com/watch?v=DjMEfQW3bf0 referenced PoC, tagged "exploit" by a source, unverified
  • sec.vnpt.vn https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/ referenced PoC, tagged "exploit" by a source, unverified
  • dappsec.substack.com https://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-from referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven com.liferay.portal:release.portal.bom
<7.1.1
7.1.1

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.