CVE-2013-2251

CRITICALNVD 9.89.8
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 100%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
100.0%
KEV
⚠ Exploited

Published

July 20, 2013

Last Modified

April 22, 2026

Advisory Details (8)

Auto-updated May 12, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Apache Struts 2 Command Execution Vulnerability in Multiple Cisco Products

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20131023-struts2
generic🟡 PoC Available

S2-016 - Apache Struts 2 Wiki - Apache Software Foundation

http://struts.apache.org/release/2.3.x/docs/s2-016.html
generic

oss-sec: Re: CVE Request: Apache Archiva Remote Command Execution 0day

http://seclists.org/oss-sec/2014/q1/89
generic

Full Disclosure: Apache Software Foundation A Subsite Remote command execution

http://seclists.org/fulldisclosure/2013/Oct/96
generic

Apache Archiva 1.3.6 => Remote Command Execution 0day - CXSecurity.com

http://cxsecurity.com/issue/WLB-2014010087
generic

Archiva – Security Vulnerabilities

http://archiva.apache.org/security.html

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.struts:struts2-core2.0.11 ... 2.3.8 (31 versions)2.3.15.1

Data Freshness Timeline

(refreshed 47× in last 7d / 202× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 275 total refreshes for this CVE.

  1. 2026-07-07 17:16 UTCCISA KEV update
  2. 2026-07-07 17:03 UTCEG score recompute
  3. 2026-07-07 13:11 UTCEG score recompute
  4. 2026-07-07 09:17 UTCEG score recompute
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  6. 2026-07-07 01:34 UTCEG score recompute
  7. 2026-07-06 21:43 UTCEG score recompute
  8. 2026-07-06 17:52 UTCEG score recompute
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  19. 2026-07-05 02:26 UTCEPSS rescore
  20. 2026-07-04 23:22 UTCEG score recompute
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  1. 2026-07-04 00:09 UTCEG score recompute
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  13. 2026-07-02 01:55 UTCEG score recompute
  14. 2026-07-01 22:03 UTCEG score recompute
  15. 2026-07-01 19:16 UTCCISA KEV update
  16. 2026-07-01 18:12 UTCEG score recompute
  17. 2026-07-01 14:21 UTCEG score recompute
  18. 2026-07-01 10:31 UTCEG score recompute
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  21. 2026-06-30 22:56 UTCEG score recompute
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  25. 2026-06-30 07:31 UTCEG score recompute
  26. 2026-06-30 03:40 UTCEG score recompute
  27. 2026-06-29 23:48 UTCEG score recompute
  28. 2026-06-29 19:55 UTCEG score recompute
  29. 2026-06-29 19:12 UTCCISA KEV update
  30. 2026-06-29 16:04 UTCEG score recompute
  31. 2026-06-29 12:11 UTCEG score recompute
  32. 2026-06-29 08:19 UTCEG score recompute
  33. 2026-06-29 04:28 UTCEG score recompute
  34. 2026-06-29 00:35 UTCEG score recompute
  35. 2026-06-28 20:45 UTCEG score recompute
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  41. 2026-06-27 21:40 UTCEG score recompute
  42. 2026-06-27 17:50 UTCEG score recompute
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  47. 2026-06-26 22:35 UTCEG score recompute
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  51. 2026-06-26 02:42 UTCEG score recompute
  52. 2026-06-25 22:51 UTCEG score recompute
  53. 2026-06-25 19:15 UTCCISA KEV update
  54. 2026-06-25 19:00 UTCEG score recompute
  55. 2026-06-25 15:10 UTCEG score recompute
  56. 2026-06-25 13:46 UTCEPSS rescore
  57. 2026-06-25 11:19 UTCEG score recompute
  58. 2026-06-25 07:28 UTCEG score recompute
  59. 2026-06-25 03:37 UTCEG score recompute
  60. 2026-06-24 23:43 UTCEG score recompute
  61. 2026-06-24 19:52 UTCEG score recompute
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  64. 2026-06-24 08:16 UTCEG score recompute
  65. 2026-06-24 04:26 UTCEG score recompute
  66. 2026-06-24 00:34 UTCEG score recompute
  67. 2026-06-23 20:41 UTCEG score recompute
  68. 2026-06-23 17:44 UTCCISA KEV update
  69. 2026-06-23 16:44 UTCEG score recompute
  70. 2026-06-23 12:53 UTCEG score recompute
  71. 2026-06-23 09:02 UTCEG score recompute
  72. 2026-06-23 05:10 UTCEG score recompute
  73. 2026-06-23 01:12 UTCEG score recompute
  74. 2026-06-22 21:21 UTCEG score recompute
  75. 2026-06-22 17:29 UTCEG score recompute

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-44583✓ verified
    First seen Jan 14, 2014

    Apache Struts2 2.0.0 < 2.3.15 - Prefixed Parameters OGNL Injection

    Open source ↗
  • Exploit-DBEDB-27135✓ verified
    First seen Jul 27, 2013

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

    Open source ↗
  • Metasploitexploit/multi/http/struts_default_action_mapper✓ verified
    First seen Jul 2, 2013

    Apache Struts 2 DefaultActionMapper Prefixes OGNL Code Execution

    Open source ↗
  • Nucleihttp/cves/2013/CVE-2013-2251.yaml
    First seen Jan 1, 2013

    Apache Struts 2 - DefaultActionMapper Prefixes OGNL Code Execution

    Open source ↗

Frequently asked(6)

What is CVE-2013-2251?
CVE-2013-2251 is a critical vulnerability published on July 20, 2013. 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.
When was CVE-2013-2251 disclosed?
CVE-2013-2251 was first published in the National Vulnerability Database on July 20, 2013, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-2251 actively exploited?
Yes. CISA added CVE-2013-2251 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting Apache Struts. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2013-2251?
CVE-2013-2251 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2013-2251?
CVE-2013-2251 affects Apache Struts. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2013-2251?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-2251, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2013-2251

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