What is CVE-2016-4461?

CVE-2016-4461 is a high-severity vulnerability in Apache Struts, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2017-10-16.

How severe is CVE-2016-4461?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Apache Struts

CVE-2016-4461

Apache Struts 2.x before 2.3.29 allows remote attackers to execute arbitrary code via a "%{}" sequence in a tag attribute, aka forced double OGNL evaluation. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-0785.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.011 (78.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
secalert@redhat.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2016-4461?: CVE-2016-4461 is a high-severity vulnerability in Apache Struts, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2017-10-16.
How severe is CVE-2016-4461?: High severity. CVSS v3 base score is 8.8 out of 10.