Vulnerability in Opensymphony Xwork
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.
EPSS: 0.257 (97.8th percentile) — read the EPSS interpretation.
Affected products
- Opensymphony Xwork
- N/a — versions n/a
Public proof-of-concept exploits
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (Third Party Advisory, vdb-entry, x_refsource_VUPEN)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, vdb-entry, x_refsource_VUPEN)
- cve@mitre.org (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2007-4556?
- CVE-2007-4556 is a vulnerability in Opensymphony Xwork. Published 2007-08-28.
- Is CVE-2007-4556 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.