Struts support in OpenSymphony XWork before 1.2.3, and 2.x before 2.0.4, as used in WebWork and Apache Struts, recursively evaluates all input as an Object-Graph Navigation Language (OGNL) expression when altSyntax is enabled, which allows remote attackers to cause a denial of service (infinite loop) or execute arbitrary code via form input beginning with a "%{" sequence and ending with a "}" character.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| opensymphony:xwork(Maven) | 0 | 1.2.3 | N/A |
| opensymphony:xwork(Maven) | 2.0.0 | 2.0.4 | N/A |
CVSS Metrics
