Vulnerability Details CVE-2007-4556
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.024
EPSS Ranking 84.3%
CVSS Severity
CVSS v2 Score 6.8
Products affected by CVE-2007-4556
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cpe:2.3:a:opensymphony:xwork:-
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cpe:2.3:a:opensymphony:xwork:1.0
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cpe:2.3:a:opensymphony:xwork:1.0.1
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cpe:2.3:a:opensymphony:xwork:1.0.2
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cpe:2.3:a:opensymphony:xwork:1.0.3
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cpe:2.3:a:opensymphony:xwork:1.0.3-1
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cpe:2.3:a:opensymphony:xwork:1.0.3-2
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cpe:2.3:a:opensymphony:xwork:1.0.4
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cpe:2.3:a:opensymphony:xwork:1.0.5
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cpe:2.3:a:opensymphony:xwork:1.1
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cpe:2.3:a:opensymphony:xwork:1.1.1
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cpe:2.3:a:opensymphony:xwork:1.1.2
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cpe:2.3:a:opensymphony:xwork:1.1.3
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cpe:2.3:a:opensymphony:xwork:1.2.0
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cpe:2.3:a:opensymphony:xwork:1.2.1
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cpe:2.3:a:opensymphony:xwork:1.2.2
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cpe:2.3:a:opensymphony:xwork:2.0.0
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cpe:2.3:a:opensymphony:xwork:2.0.1
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cpe:2.3:a:opensymphony:xwork:2.0.2
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cpe:2.3:a:opensymphony:xwork:2.0.3
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cpe:2.3:a:opensymphony:xwork:2.0.4