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CVE-2012-0391

The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter values as OGNL expressions during certain exception…

Critical9.8Known exploitedEPSS 75.6%
Published
Updated
Reserved
Assigned by
mitre

Description

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.

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Apache Struts 2 Improper Input Validation Vulnerability.

Added
21 Jan 2022
Fix due (US federal)
21 Jul 2022
Used by ransomware
Not known

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Scores

CVSS scores of CVE-2012-0391, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
75.6% · top 0.5% of all CVEs (3 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: yes · Technical impact: total

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

  • n/a

    • affected n/a

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (8)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .