Vulnerability record · CVE-2012-0838 · published 2 March 2012

CVE-2012-0838: Apache struts improper input validation vulnerability

Apache · Struts

Apache Struts 2 before 2.2.3.1 evaluates a string as an OGNL expression during the handling of a conversion error, which allows remote attackers to modify run-time data values, and consequently execute arbitrary code, via invalid input to a field.

10.0 CVSS 2.0 High EPSS 14% · top 3.6% CWE-20 · Improper input validation

10.0CVSS 2.0 base score

14%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

8References

16 Jun 2026Last modified by NVD

Description

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Struts Apache

References

Link	Tags
http://jvn.jp/en/jp/JVN79099262/index.html	Third Party AdvisoryVDB Entry
http://jvndb.jvn.jp/jvndb/JVNDB-2012-000012	Third Party AdvisoryVDB Entry
http://struts.apache.org/2.3.1.2/docs/s2-007.html	Vendor Advisory
https://issues.apache.org/jira/browse/WW-3668	Issue TrackingVendor Advisory
http://jvn.jp/en/jp/JVN79099262/index.html	Third Party AdvisoryVDB Entry
http://jvndb.jvn.jp/jvndb/JVNDB-2012-000012	Third Party AdvisoryVDB Entry
http://struts.apache.org/2.3.1.2/docs/s2-007.html	Vendor Advisory
https://issues.apache.org/jira/browse/WW-3668	Issue TrackingVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2012-0838), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.