Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2007-4556 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://forums.opensymphony.com/ann.jspa?annID=54	CVE	PatchVendor Advisory
http://issues.apache.org/struts/browse/WW-2030	CVE	Third Party Advisory
http://jira.opensymphony.com/browse/XW-544	CVE	Vendor Advisory
http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701	CVE	Vendor Advisory
http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706	CVE	Vendor Advisory
http://osvdb.org/37072	CVE	Broken Link
http://secunia.com/advisories/26681	CVE	Third Party Advisory
http://secunia.com/advisories/26693	CVE	Third Party Advisory
http://secunia.com/advisories/26694	CVE	Third Party Advisory
http://struts.apache.org/2.x/docs/s2-001.html	CVE	PatchThird Party Advisory
http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release	CVE	Vendor Advisory
http://www.securityfocus.com/bid/25524	CVE	Third Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2007/3041	CVE	Third Party Advisory
http://www.vupen.com/english/advisories/2007/3042	CVE	Third Party Advisory
http://forums.opensymphony.com/ann.jspa?annID=54	[email protected]	PatchVendor Advisory
http://issues.apache.org/struts/browse/WW-2030	[email protected]	Third Party Advisory
http://jira.opensymphony.com/browse/XW-544	[email protected]	Vendor Advisory
http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701	[email protected]	Vendor Advisory
http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706	[email protected]	Vendor Advisory
http://osvdb.org/37072	[email protected]	Broken Link
http://secunia.com/advisories/26681	[email protected]	Third Party Advisory
http://secunia.com/advisories/26693	[email protected]	Third Party Advisory
http://secunia.com/advisories/26694	[email protected]	Third Party Advisory
http://struts.apache.org/2.x/docs/s2-001.html	[email protected]	PatchThird Party Advisory
http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release	[email protected]	Vendor Advisory
http://www.securityfocus.com/bid/25524	[email protected]	Third Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2007/3041	[email protected]	Third Party Advisory
http://www.vupen.com/english/advisories/2007/3042	[email protected]	Third Party Advisory

see all 28 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]

Affected Products

Product	Versions
opensymphony xwork	< 1.2.3 >= 2.0.0, <= 2.0.4
CPE cpe:2.3:a:opensymphony:xwork:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 23, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 26, 2018	Modified Analysis	[email protected]
Aug 28, 2007	Initial Analysis	[email protected]