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…
- 6.8MediumCVSS base score
- 25.7%Exploitation in 30 daysEPSS · top 2.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Nuclei template for it.
Show the exploits1
Nuclei templates1 template
- OpenSymphony XWork/Apache Struts2 - Remote Code Execution (Nuclei template) (opens in a new tab)
http/cves/2007/CVE-2007-4556.yamlSeverity medium
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 25.7% · top 2.0% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenopensymphony:xworkGHSA-h7mf-qrm9-2848 (opens in a new tab)
References
14
- 25524 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://jira.opensymphony.com/browse/XW-544 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://issues.apache.org/struts/browse/WW-2030 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2007-3041 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- http://forums.opensymphony.com/ann.jspa?annID=54 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2007-3042 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 26693 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 26681 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37072 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://struts.apache.org/2.x/docs/s2-001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 26694 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-4099 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-h7mf-qrm9-2848 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-4556)Record last updated .