Vulnerability · CVE-2013-1965

Apache Struts Improper Control of Generation of Code

Q: Which versions are affected?

Compare what you have installed with = 2.0.0, <= 2.3.13. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Q: What should an analyst verify?

CWE-94: Code Injection. EPSS 93.53%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Published Jul 10, 2013 · catalog updated Nov 8, 2026 · Apache Struts

Last checked Nov 9, 2026. A connected source was read within the last 7 days.

Patch now

CVE-2013-1965 is in the CISA known-exploited catalog. Confirm Apache Struts against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Same product and reporting

CVE-2021-31805 · Unknown · known exploited
CVE-2014-0113 · Unknown · known exploited
CVE-2014-0112 · Unknown · known exploited
CVE-2020-17530 · Critical · known exploited
CVE-2011-3923 · Critical · known exploited

Severity: Critical9.3
Known exploitation: CISA KEV and VulnCheck KEV
EPSS: 93.53%
Remediation: Remediation guidance
Affected products: cpe apache/struts · cpe apache/struts2-showcase · vendor Apache Struts

Apache Struts Showcase App 2.0.0 through 2.3.13, as used in Struts 2 before 2.3.14.3, allows remote attackers to execute arbitrary OGNL code via a crafted parameter name that is not properly handled when invoking a redirect. VulnCheck canary evidence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

cpe apache/struts< 2.3.14.1
cpe apache/struts2-showcase>= 2.0.0, <= 2.3.13
vendor Apache Strutsversion unspecified

How to fix CVE-2013-1965

Vendor action
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Version check
Affected < 2.3.14.1
Advisory
Open the cve_org record and follow its fix.
Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2013-1965 is in the CISA known-exploited catalog. Confirm Apache Struts against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with < 2.3.14.1, >= 2.0.0, <= 2.3.13. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-94: Code Injection. EPSS 93.53%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Apache Struts security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

Nov 8, 2026 · VulnCheck KEV
Detected
Apache Struts Showcase App 2.0.0 through 2.3.13, as used in Struts 2 before 2.3.14.3, allows remote attackers to execute arbitrary OGNL code via a crafted parameter name that is not properly handled when invoking a redirect. VulnCheck canary evidence.
Nov 8, 2026 · CISA KEV
Known exploited
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

CVE.orgVulnerability recordCVE-2013-1965
Official CVE identifier
cve.org
Monitored products — highVendor advisoryCVE-2013-1965
Apache Struts Showcase App 2.0.0 through 2.3.13, as used in Struts 2 before 2.3.14.3, allows remote attackers to execute arbitrary OGNL code via a crafted parameter name that is not properly handled when invoking a redirect.
nvd.nist.gov
NIST NVDVulnerability recordCVE-2013-1965
Apache Struts Showcase App 2.0.0 through 2.3.13, as used in Struts 2 before 2.3.14.3, allows remote attackers to execute arbitrary OGNL code via a crafted parameter name that is not properly handled when invoking a redirect.
nvd.nist.gov
VulnCheck KEVConfirmed exploitationCVE-2013-1965
Apache Struts Showcase App 2.0.0 through 2.3.13, as used in Struts 2 before 2.3.14.3, allows remote attackers to execute arbitrary OGNL code via a crafted parameter name that is not properly handled when invoking a redirect.
vulncheck.com

References

Freshness

Last verified in this catalog Nov 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

VulnCheck KEVNov 9, 2026
Monitored products — highNov 8, 2026
CVE.orgNov 8, 2026
NIST NVDNov 8, 2026

Priority score

73/100

Evidence confidence: Very high

CISA lists this vulnerability as known to be exploited.

Confirmed exploitation30/30
EPSS probability19/20
CVSS severity14/15
Public exploit0/10
Internet exposure10/10
Product prevalence0/5
Detection0/5
Threat research0/5

Decision signals

Four separate signals — do not infer one from another.

Critical

CVSS severity
9.3 v2.0
Technical impact. Separate from exploitation likelihood.
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS probability
93.53% · p99.84%
Estimated probability of exploitation within 30 days (FIRST).
Known exploitation
Yes · CISA KEV and VulnCheck KEV
CISA KEV since Nov 8, 2026. Ransomware use: Unknown.
Patch availability
Remediation guidance
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Stacks

Apache Apache Struts

Weakness

CWE-94
Code Injection
MITRE definition

Watch

A free account watches 5 technologies and gets a weekly digest. Professional adds immediate alerts.