CVE-2007-4556

2007-08-28T01:17:00
ID CVE-2007-4556
Type cve
Reporter cve@mitre.org
Modified 2018-10-26T14:00:00

Description

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.