Apache Struts 2 Improper Input Validation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 21/01/2022. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.struts.xwork:xwork-core | < 2.2.3.1 | 2.2.3.1 |
| org.apache.struts:struts2-core | < 2.2.3.1 | 2.2.3.1 |
| struts | < 2.2.3.1 | 2.2.3.1 |
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.
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