CVE-2013-0340
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.
Published:Feb 19, 2013
Last Modified:Nov 25, 2025
EPS:Jan 21, 2014
EPSS Score:0.00037
CVSS Score:6.8
Affected Products
Vendor
Product
Action
Vendor
Apple
Product
Ipados
Apple
Ipados
Vendor
Apple
Product
Iphone Os
Apple
Iphone Os
Vendor
Apple
Product
Macos
Apple
Macos
Vendor
Apple
Product
Tvos
Apple
Tvos
Vendor
Apple
Product
Watchos
Apple
Watchos
Vendor
Libexpat Project
Product
Libexpat
Libexpat Project
Libexpat
Vendor
Python
Product
Python
Python
Python
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
