Description
expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.
Metrics
AV:N/AC:M/Au:N/C:P/I:P/A:PWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Jan 21, 2014
- Last modified
- Oct 14, 2026
- NVD status
- Modified