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CVE-2012-0392 — struts2-core

Fix: apache/struts@25e5006

CVE-2012-0392 is a remote code execution vulnerability in org.apache.struts:struts2-core. 3 public exploit references exist, so weaponization risk is real. A fix is available for org.apache.struts:struts2-core — see the affected versions and patch details below.

Apache Struts's CookieInterceptor component does not use the parameter-name whitelist

Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
3 known
Exploitation data as of Oct 24, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
97.5%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
68.1%78.7%89.4%100.0%85.1%97.5%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

2 pkgs affected
☕org.apache.struts:struts2-core☕org.apache.struts.xwork:xwork-core

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

The CookieInterceptor component in Apache Struts before 2.3.1.1 does not use the parameter-name whitelist, which allows remote attackers to execute arbitrary commands via a crafted HTTP Cookie header that triggers Java code execution through a static method.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.struts:struts2-coreall versions2.2.3.1org.apache.struts:struts2-core:2.2.3.1
☕Mavenorg.apache.struts.xwork:xwork-coreall versions2.2.3.1org.apache.struts.xwork:xwork-core:2.2.3.1

Affected Products

1 product · 1 configurations
Application
strutsapache
≥ 2.0.0 && < 2.3.1
range
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-18329webappsmultiple✓ Verified

Apache Struts 2 < 2.3.1 - Multiple Vulnerabilities

by SEC Consult · Jan 6, 2012

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.struts:struts2-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.struts:struts2-core to 2.2.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-0392 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How to detect CVE-2012-0392

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2012-0392 -u https://target
Template
Apache Struts2 S2-008 RCE
Severity
medium
Impact
Successful exploitation of this vulnerability can lead to remote code execution on the affected server.
Remediation
Developers should immediately upgrade to at least Struts 2.3.18.

Template by ProjectDiscovery nuclei-templates (pikpikcu), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

The CookieInterceptor component in Apache Struts before 2.3.1.1 does not use the parameter-name whitelist, which allows remote attackers to execute arbitrary commands via a crafted HTTP Cookie header that triggers Java code execution through a static method.
O3 Security · Impact-Aware SCA

Is CVE-2012-0392 in your dependencies?

Find it across Maven, including transitive dependencies.

CVE-2012-0392: struts2-core — Fixed in 2.2.3.1