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Fencer Vulns
critical 9.8

CVE-2019-0230 in the critical feed json

Improperly Controlled Modification of Dynamically-Determined Object Attributes in Apache Struts

published 2020-09-14 6 y ago modified 2026-06-17 4 mo ago also GHSA-wp4h-pvgw-5727 , EUVD-2021-2606

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
96.9%
EPSS 96.9% chance of exploitation in 30 days, percentile 99.8%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

Summary

Apache Struts 2.0.0 to 2.5.20 forced double OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.

Patch / fix

  • maven org.apache.struts:struts2-core 2.5.22

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-0230 updated cvss 8.1

struts2: possible RCE due to forced double OGNL evaluation when evaluated on raw user input in tag attributes

  • Red Hat Enterprise Linux 5 struts
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Enterprise Application Platform 6 struts struts Red Hat JBoss Fuse Service Works 6 struts struts Red Hat JBoss Operations Network 3 struts struts Red Hat OpenStack Platform 10 (Newton) opendaylight
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (Metasploit exploit/multi/http/struts2_multi_eval_ognl)
  2. Published

Exploit prediction

96.95% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

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 org.apache.struts:struts2-core
>=2.0.0, <2.5.22
2.5.22

Affected products

  • n/a Apache Struts

Classification

Weakness
  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes

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.