Apache Struts Improper Input Validation Vulnerability

Added to KEV
2022-03-25
Federal due date
2022-04-15
Vendor
Apache
Product
Struts
EPSS
100.0th percentile (score 0.943, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2013-2251

CISA short description

Apache Struts allows remote attackers to execute arbitrary Object-Graph Navigation Language (OGNL) expressions.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.