CVE-2012-0393

Severity: medium (CVSS 6.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 36.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-01-08 · updated 2026-06-16
Weakness: CWE-264

Description

The ParameterInterceptor component in Apache Struts before 2.3.1.1 does not prevent access to public constructors, which allows remote attackers to create or overwrite arbitrary files via a crafted parameter that triggers the creation of a Java object.

Affected products

Apache Struts: from 2.1.0 before 2.3.1.1 — fixed in 2.3.1.1

How to fix

Upgrade to a fixed version: Apache Struts 2.3.1.1. Check the vendor advisory for mitigations.

References

http://archives.neohapsis.com/archives/bugtraq/2012-01/0031.html
http://secunia.com/advisories/47393
http://struts.apache.org/2.x/docs/s2-008.html
http://struts.apache.org/2.x/docs/version-notes-2311.html
http://www.exploit-db.com/exploits/18329
https://www.sec-consult.com/files/20120104-0_Apache_Struts2_Multiple_Critical_Vulnerabilities.txt
http://archives.neohapsis.com/archives/bugtraq/2012-01/0031.html
http://secunia.com/advisories/47393
http://struts.apache.org/2.x/docs/s2-008.html
http://struts.apache.org/2.x/docs/version-notes-2311.html
http://www.exploit-db.com/exploits/18329
https://www.sec-consult.com/files/20120104-0_Apache_Struts2_Multiple_Critical_Vulnerabilities.txt

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