CVE-2013-2251

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 1.000 · 100 %ileexploit · weaponizedEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 4 exploits · weaponized

Likely / severe?

100.0% (100th) EPSS

CVSS 9.3 · high

Is it mine?

49 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · osv

added 2022-03-25remediate by 2022-04-15

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Apache Struts Improper Input Validation Vulnerability

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

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.3–10

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · OSV

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-74USprimaryCWE-20USCWE-20USCWE-74US

exploits (4)

Public proof-of-concept and weaponised exploit code.

exploit/multi/http/struts_default_action_mapperApache Struts 2 DefaultActionMapper Prefixes OGNL Code Executionweaponized · metasploit
EDB-27135Apache Struts 2 - DefaultActionMapper Prefixes OGNL Code Execution (Metasploit)functional · exploit_db
EDB-44583Apache Struts2 2.0.0 < 2.3.15 - Prefixed Parameters OGNL Injectionfunctional · exploit_db
nth347/struts2-CVE-2013-2251Vulnerable environment of CVE-2013-2251 (S2-016) for testingPoC · poc_in_github

affected products (49)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Apache Software Foundation Struts2.0.0 → 2.3.15fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine≤ 1.0.4.573-6fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine1.1.0.665 → 1.1.0.665-4fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine1.1.1.268 → 1.1.1.268-6fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine1.1.2.145 → 1.1.2.145-9fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine1.1.3.124 → 1.1.3.124-4fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine1.1.4.218 → 1.1.4.218-4fstec_bduRU
Cisco Systems Inc. Cisco Identity Services Engine1.2.0.0 → 1.2.0.899fstec_bduRU
Cisco Systems Inc. Cisco Media Experience Engine (MXE) 3500 Series≤ 3.3.2fstec_bduRU
Cisco Systems Inc. Cisco Packaged Contact Center Enterprise10.0(1) → 10.0(1)ES10fstec_bduRU
Cisco Systems Inc. Cisco Packaged Contact Center Enterprise10.5 → 10.5(1)fstec_bduRU
Cisco Systems Inc. Cisco Packaged Contact Center Enterprise8.5(4) → 8.5(4)ES37fstec_bduRU
Cisco Systems Inc. Cisco Packaged Contact Center Enterprise9.0(3) → 9.0(3)ES13fstec_bduRU
Cisco Systems Inc. Cisco Packaged Contact Center Enterprise9.0(4) → 9.0(4)ES39fstec_bduRU
Cisco Systems Inc. Cisco Unified Contact Center Enterprise10.0(1) → 10.0(1)ES10fstec_bduRU
Cisco Systems Inc. Cisco Unified Contact Center Enterprise10.5 → 10.5(1)fstec_bduRU
Cisco Systems Inc. Cisco Unified Contact Center Enterprise8.5(4) → 8.5(4)ES37fstec_bduRU
Cisco Systems Inc. Cisco Unified Contact Center Enterprise9.0(3) → 9.0(3)ES13fstec_bduRU
Cisco Systems Inc. Cisco Unified Contact Center Enterprise9.0(4) → 9.0(4)ES39fstec_bduRU

showing 20 of 49

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-47qp-8v9g-39hpCode injection in Apache Struts2022-05-13ghsa · osvUS
The Struts 2 DefaultActionMapper supports a method for short-circuit navigation state changes by prefixing parameters with "action:" or "redirect:", followed by a desired navigational target expression. This mechanism was intended to help with attaching navigational information to buttons within forms. In Struts 2 before 2.3.15.1 the information following "action:", "redirect:" or "redirectAction:" is not properly sanitized. Since said information will be evaluated as OGNL expression against the value stack, this introduces the possibility to inject server side code.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv NVD CVE.org MITRE

published 2013-07-20modified 2026-06-16

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+5979 more

references (50)

External citations — patches, advisories, analysis.

scry

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