Improper input validation in Apache Struts

CVE-2016-3087

Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via vectors related to an ! (exclamation mark) operator to the REST Plu…

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

EPSS: 0.870 (99.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Apache Struts — versions 2.3.20, 2.3.20.1, 2.3.24
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-3087?
CVE-2016-3087 is a critical-severity vulnerability in Apache Struts, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2016-06-07.
How severe is CVE-2016-3087?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-3087 known to be exploited?
27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.