CVE-2007-4556

Summary

CVECVE-2007-4556
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2007-08-28 01:17:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionStruts 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.

Risk And Classification

Primary CVSS: v2.0 6.8 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:P

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Opensymphony Xwork All All All All
Application Opensymphony Xwork All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
S2-001 af854a3a-2127-422b-91ae-364da2661108 struts.apache.org Patch, Third Party Advisory
[#WW-2030] User input is evaluated as an OGNL expression - Apache Struts JIRA af854a3a-2127-422b-91ae-364da2661108 issues.apache.org Third Party Advisory
1.2.3 Press Release - WebWork - Confluence af854a3a-2127-422b-91ae-364da2661108 wiki.opensymphony.com Vendor Advisory
osvdb.org/37072 af854a3a-2127-422b-91ae-364da2661108 osvdb.org Broken Link
OpenSymphony Support Forums: XWork 1.2.3 Security Update released af854a3a-2127-422b-91ae-364da2661108 forums.opensymphony.com Patch, Vendor Advisory
Release Notes - XWork - Version 2.0.4 - HTML format - OpenSymphony JIRA af854a3a-2127-422b-91ae-364da2661108 jira.opensymphony.com Vendor Advisory
Release Notes - XWork - Version 1.2.3 - HTML format - OpenSymphony JIRA af854a3a-2127-422b-91ae-364da2661108 jira.opensymphony.com Vendor Advisory
XWork Input Validation OGNL Command Injection Vulnerability - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
Apache Struts XWork Input Validation OGNL Command Injection Vulnerability - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Third Party Advisory
XWork AltSyntax OGNL Input Validation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Third Party Advisory
Opensymphony WebWork XWork Input Validation OGNL Command Injection - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
[#XW-544] User input is evaluated as an OGNL expression - OpenSymphony JIRA af854a3a-2127-422b-91ae-364da2661108 jira.opensymphony.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report