How severe is CVE-2013-2251?

CVE-2013-2251 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2013-2251?

Affected package information for CVE-2013-2251 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2013-2251?

No fixed version has been published for CVE-2013-2251 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2013-2251 actively exploited in the wild?

Yes. There are 7 known exploit references for CVE-2013-2251, including 2 documented proof-of-concept exploits on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. 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-2013-2251?

CVE-2013-2251 has an EPSS (Exploit Prediction Scoring System) score of 94.3%, 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.

Is CVE-2013-2251 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2013-2251 (Apache Struts Improper Input Validation Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-03-25. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-04-15. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2013-2251?

CVE-2013-2251 is classified as CWE-74 (CWE-74). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2013-2251?

CVE-2013-2251 affects apache archiva (2 versions, e.g. 1.2, 1.2.2); apache struts; fujitsu interstage business process manager analytics (2 versions, e.g. 12.0, 12.1); oracle siebel apps - e-billing (3 versions, e.g. 6.1, 6.1.1, 6.2). Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2013-2251?

A Nuclei detection template exists for CVE-2013-2251, 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-2013-2251 published, and has it been updated?

CVE-2013-2251 was published on July 20, 2013 and was last updated on April 22, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-03-25 — agencies required to remediate by 2022-04-15

CVE-2013-2251

CRITICAL

Apache Struts 2.0.0 through 2.3.15 allows remote attackers to execute arbitrary OGNL expressions via a parameter with a crafted (1) action:, (2) redirect:, or (3) redirectAction: prefix.

Published

Jul 20, 2013

Updated

Apr 22, 2026

Affected

0 pkgs

Patched

None yet

Exploits

7 known

EPSS Exploitation Probability

via FIRST.org ↗

94.3%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Apache Struts 2.0.0 through 2.3.15 allows remote attackers to execute arbitrary OGNL expressions via a parameter with a crafted (1) action:, (2) redirect:, or (3) redirectAction: prefix.

Affected Products

4 products · 9 configurations

Application

archivaapache

≥ 1.3 && < 1.3.8

2 versions

1.21.2.2

Application

strutsapache

≥ 2.0.0 && ≤ 2.3.15

range

Application

interstage business process manager analyticsfujitsu

2 versions

12.012.1

Application

siebel apps - e-billingoracle

3 versions

6.16.1.16.2

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-27135remotemultiple✓ Verified

Apache Struts 2 - DefaultActionMapper Prefixes OGNL Code Execution (Metasploit)

by Metasploit · Jul 27, 2013

Exploit-DB Source

EDB-44583webappsmultiple✓ Verified

Apache Struts2 2.0.0 < 2.3.15 - Prefixed Parameters OGNL Injection

by Takeshi Terada · Jan 14, 2014

Exploit-DB Source

Frequently Asked Questions

Apache Struts 2.0.0 through 2.3.15 allows remote attackers to execute arbitrary OGNL expressions via a parameter with a crafted (1) action:, (2) redirect:, or (3) redirectAction: prefix.

O3 Security · Impact-Aware SCA

Is CVE-2013-2251 in your stack?

O3 detects CVE-2013-2251 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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