| CVE-2007-4556 | Date: (C)2007-08-27 (M)2023-12-22 |
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.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V2 Severity: |
| CVSS Score : 6.8 |
| Exploit Score: 8.6 |
| Impact Score: 6.4 |
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| CVSS V2 Metrics: |
| Access Vector: NETWORK |
| Access Complexity: MEDIUM |
| Authentication: NONE |
| Confidentiality: PARTIAL |
| Integrity: PARTIAL |
| Availability: PARTIAL |
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