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CVE-2011-3923

89
FAUCET Score

CVE-2011-3923 is a critical remote code execution vulnerability affecting Apache Struts versions prior to 2.3.1.2, as well as related products like Apache JBoss Enterprise Web Server and Red Hat Struts. With a CVSS score of 9.8, this flaw allows unauthenticated attackers to bypass security in the ParameterInterceptor class and execute arbitrary commands with high impact on confidentiality, integrity, and availability. Exploit code is publicly available, including a Metasploit module, and the vulnerability has garnered significant community attention and media coverage, indicating its widespread recognition and potential for exploitation. Despite its age, its high EPSS score and FAUCET Risk Score of 100/100 suggest it remains a significant threat.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.0, < 2.3.1.2CPE matchmatch criteria
cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_web_server:1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
88.36%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Apache Struts ParametersInterceptor Remote Code Execution · Oct 1, 2011
ExploitDB: EDB-24874 · Mar 22, 2013
This CVE's current EPSS score of 0.8836 is in the 99th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.struts:struts2-coreFixed in: 2.3.1.2

Vendor Advisories (1)

mavenGHSA-j68f-8h6p-9h5qcritical

Struts ParameterInterceptor vulnerability allows remote command execution

Apr 22, 2022

References

bugzilla.redhat.com / show_bug.cgi
seclists.org / fulldisclosure/2014/Jul/38
exchange.xforce.ibmcloud.com / vulnerabilities/72585
security-tracker.debian.org / tracker/CVE-2011-3923
exploit-db.com / exploits/24874
securityfocus.com / bid/51628
securitytracker.com / id