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Fencer Intel
high 7.5

CVE-2016-4433 json

Apache Struts Open Redirect

published 2016-07-04 10 y ago modified 2026-06-17 4 mo ago also GHSA-wm8w-qp2f-728q , EUVD-2022-5595

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.8%
EPSS 9.8% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

Apache Struts 2 2.3.20 through 2.3.28.1 allows remote attackers to bypass intended access restrictions and conduct redirection attacks via a crafted request.

Patch / fix

  • maven org.apache.struts.xwork:xwork-core 2.3.29

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-2016-4433 updated cvss 4.3

struts: Bypassing internal security mechanisms by crafted request

  • Red Hat Enterprise Linux 5 struts Red Hat Satellite 5 struts
    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

Exploit prediction

9.75% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.struts.xwork:xwork-core
>=2.3.20, <2.3.29
2.3.29

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel 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.