The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter…
Priority CRITICAL 100Exploited in the wildCWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-94.
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.
Why it matters now
Exploitation Active In CISA KEV since 2022-01-21CISA due date 2022-07-21
EPSS 0.75599 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by the CNA and NVD
Fix Fixed org.apache.struts:struts2-core (Maven): 2.2.3.1org.apache.struts.xwork:xwork-core (Maven): 2.2.3.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | org.apache.struts:struts2-core (Maven) | before 2.2.3.1 | 2.2.3.1 | Patch available | GHSA-4wrr-9h5r-m92w |
| — | org.apache.struts.xwork:xwork-core (Maven) | before 2.2.3.1 | 2.2.3.1 | Patch available | GHSA-4wrr-9h5r-m92w |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- org.apache.struts:struts2-core (Maven) Vendor— Affected before 2.2.3.1 Fixed in 2.2.3.1 Patch available GHSA-4wrr-9h5r-m92w
- org.apache.struts.xwork:xwork-core (Maven) Vendor— Affected before 2.2.3.1 Fixed in 2.2.3.1 Patch available GHSA-4wrr-9h5r-m92w
Remediation
- Fix · GHSA-4wrr-9h5r-m92w org.apache.struts:struts2-core (Maven) Fixed in 2.2.3.1 Advisory →
- Fix · GHSA-4wrr-9h5r-m92w org.apache.struts.xwork:xwork-core (Maven) Fixed in 2.2.3.1 Advisory →
Vendor assessments
Timeline
- 2022-01-21 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2012-0391
- 2026-10-03 Alias added: GHSA-4wrr-9h5r-m92w
References
Exploit 3
Advisory 4
Other 5
- https://github.com/apache/struts/commit/25e50069d60434a30395e3a98357ffba2bed427e
- https://github.com/apache/struts/commit/5f54b8d087f5125d96838aafa5f64c2190e6885b
- https://github.com/apache/struts/commit/b4265d369dc29d57a9f2846a85b26598e83f3892
- https://github.com/apache/struts
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-0391
More Apache Struts vulnerabilities
- TI-2020-13278 Expression language injection in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2017-07171 Improper input validation in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2013-02013 Apache Struts 2.0.0 through 2.3.15 allows remote attackers to execute arbitrary OGNL… KEVCVSS 3.1CRITICAL 9.8
- TI-2018-08433 Improper input validation in Apache Struts KEVCVSS 3.1HIGH 8.1
- TI-2017-07185 Deserialization of untrusted data in Apache Struts KEVCVSS 3.1HIGH 8.1
Sources
- CVE-2012-0391 · CVE Program
- CVE-2012-0391 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-4wrr-9h5r-m92w · GitHub Advisory Database · CC BY 4.0
- CVE-2012-0391 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences