CVE-2012-0391 (GCVE-0-2012-0391)
Vulnerability from cvelistv5 – Published: 2012-01-08 15:00 – Updated: 2025-10-22 00:05
VLAI?
CISA KEV
Summary
The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter values as OGNL expressions during certain exception handling for mismatched data types of properties, which allows remote attackers to execute arbitrary Java code via a crafted parameter.
Severity ?
9.8 (Critical)
CWE
- n/a
Assigner
References
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CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9d2c649d-8ced-4776-a4b6-9a3eddf772ca
Exploited: Yes
Timestamps
First Seen: 2022-01-21
Asserted: 2022-01-21
Scope
Notes: KEV entry: Apache Struts 2 Improper Input Validation Vulnerability | Affected: Apache / Struts 2 | Description: The ExceptionDelegator component in Apache Struts 2 before 2.2.3.1 contains an improper input validation vulnerability that allows for remote code execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-07-21 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2012-0391
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-20 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Struts 2 |
| Due Date | 2022-07-21 |
| Date Added | 2022-01-21 |
| Vendorproject | Apache |
| Vulnerabilityname | Apache Struts 2 Improper Input Validation Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:28 UTC
| Updated: 2026-02-06 07:17 UTC
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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