HackZoneLabs News
Newsletter

CVE-2013-2251

Apache Struts Improper Input Validation Vulnerability

  • Critical 9.8
  • Exploited: added to CISA KEV 25 Mar 2022

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.

Key facts

Published
18 Jul 2013
Last changed
22 Oct 2025
Assigned by
redhat
KEV added
25 Mar 2022
KEV fix due
15 Apr 2022
EPSS
99.998% likely to be exploited in the next 30 days, higher than 99.99% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 9.8CVSS 3.1, Criticalfrom CISA (ADP container)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
n/an/a
  • n/a (affected)

Timeline

  1. 18 Jul 2013 Published
  2. 25 Mar 2022 CVE-2013-2251 added to CISA KEV
  3. 25 Mar 2022 Added to the CISA KEV catalogue

Weakness

References