Ipados
CVE-2013-0340
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A02:2025 - Security Misconfiguration
ASVS 5.0
V13 - Configuration XML external entity prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.8 (MEDIUM). Attack characteristics: network attack vector, M complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.06%. |
| Exploit ScenarioDerived | A remote attacker could read arbitrary files or perform SSRF through XML processing by sending crafted requests to the affected application. |
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Alert meAnalysisAI
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. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Disable external entity processing in XML parsers, use JSON instead of XML where possible.
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Technical ContextAI · show details
This vulnerability is classified as XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. 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. Affected products include: Libexpat Project Libexpat, Python, Apple Ipados, Apple Iphone Os, Apple Macos. Version information: version 2.4.0.
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Severity by source
AV:N/AC:M/Au:N/C:P/I:P/A:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
XML External Entity (XXE) attacks exploit XML parsers that process Document Type Definitions (DTDs) without proper restrictions.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit
WebKit memory corruption in Safari 18.6 and multiple Apple platforms allows remote code execution when processing malici
A use-after-free issue was addressed with improved memory management. Rated high severity (CVSS 8.8), this vulnerability
A use-after-free issue was addressed with improved memory management. Rated high severity (CVSS 7.8), this vulnerability
Apple kernel lock state checking flaw allows a malicious application to cause unexpected changes in memory shared betwee
A critical out-of-bounds write in WebKit's rendering engine allows maliciously crafted web content to escape the Web Con
Apple kernel memory corruption in multiple operating systems allows a malicious application to cause unexpected system t
Arbitrary code execution in Apple Safari, iOS/iPadOS, macOS Sequoia, and visionOS occurs when processing maliciously cra
zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header
Out-of-bounds write (CWE-787) in QtWebEngine before 6.10.1-r2 on Alpine Linux, and in other Chromium-based engines such
Remote code execution in Google Chrome's ANGLE graphics layer allows attackers to compromise systems via crafted HTML pa
WebKit arbitrary code execution via use-after-free memory corruption affects Safari 26.2, iOS/iPadOS 18.7.3 through 26.2
Exploit-DB