How severe is CVE-2013-2248?

No CVSS score has been assigned to CVE-2013-2248 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2013-2248?

CVE-2013-2248 affects the following packages: org.apache.struts:struts2-core (Maven). Ecosystems affected: Maven.

How do I fix CVE-2013-2248?

Update org.apache.struts:struts2-core to 2.3.15.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-2248 is resolved across your whole dependency graph.

How do I detect CVE-2013-2248 in my Maven dependencies?

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.

How do I mitigate CVE-2013-2248 if there is no patch (or I can't update yet)?

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.

Is CVE-2013-2248 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2013-2248, including 1 documented proof-of-concept exploit on Exploit-DB. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2013-2248?

CVE-2013-2248 has an EPSS (Exploit Prediction Scoring System) score of 94.7%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is CVE-2013-2248?

CVE-2013-2248 is classified as Improper Input Validation (CWE-20). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for CVE-2013-2248?

A Nuclei detection template exists for CVE-2013-2248, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2013-2248 published, and has it been updated?

CVE-2013-2248 was published on May 17, 2022 and was last updated on December 6, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

CVE-2013-2248 — struts2-core

Fix: apache/struts@3cfe34f

CVE-2013-2248 is a Improper Input Validation vulnerability in org.apache.struts:struts2-core. 1 public exploit reference exists, so weaponization risk is real. A fix is available for org.apache.struts:struts2-core — see the affected versions and patch details below.

Open redirect in Apache Struts

Published

May 17, 2022

Updated

Dec 6, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Oct 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

94.7%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

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

Real-World Exposure

1 pkg affected

☕org.apache.struts:struts2-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 Struts 2 DefaultActionMapper used to support a method for short-circuit navigation state changes by prefixing parameters with "redirect:" or "redirectAction:", followed by a desired redirect target expression. This mechanism was intended to help with attaching navigational information to buttons within forms. Attackers could use this to redirect to arbitrary web sites and conduct phishing attacks.

In Struts 2 before 2.3.15.1 the information following "redirect:" or "redirectAction:" can easily be manipulated to redirect to an arbitrary location.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.struts:struts2-core`	all versions	2.3.15.1`org.apache.struts:struts2-core:2.3.15.1`

Affected Products

1 product · 44 configurations

Application

strutsapache

44 versions

2.0.02.0.12.0.22.0.32.0.42.0.52.0.62.0.72.0.82.0.92.0.102.0.11

Exploits & PoCs

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

EDB-38666remotemultiple✓ Verified

Apache Struts 2.2.3 - Multiple Open Redirections

by Takeshi Terada · Jul 16, 2013

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

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.
Fix
Update org.apache.struts:struts2-core to 2.3.15.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-2248 is resolved across your whole dependency graph.
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-2013-2248

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

nuclei -id cve-2013-2248 -u https://target

Template: Apache Struts - Multiple Open Redirection Vulnerabilities
Severity: medium
Impact: An attacker can exploit these vulnerabilities to redirect users to malicious websites, leading to phishing attacks or the download of malware.
Remediation: Developers should immediately upgrade to Struts 2.3.15.1 or later.

Template by ProjectDiscovery nuclei-templates (0x_Akoko), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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