CVE-2008-4029

Microsoft XML Core Services <4.0 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-4029.

AI-analyzed exploit summary This exploit leverages an XML External Entity (XXE) vulnerability in Microsoft XML Core Services (MSXML) via ActiveX. It attempts to load an external DTD from a remote URL, which could lead to information disclosure or further exploitation.

Description

Cross-domain vulnerability in Microsoft XML Core Services 3.0 and 4.0, as used in Internet Explorer, allows remote attackers to obtain sensitive information from another domain via a crafted XML document, related to improper error checks for external DTDs, aka "MSXML DTD Cross-Domain Scripting Vulnerability."

Exploits (1)

exploitdb WORKING POC
htmlremotewindows
https://www.exploit-db.com/exploits/7196

This exploit leverages an XML External Entity (XXE) vulnerability in Microsoft XML Core Services (MSXML) via ActiveX. It attempts to load an external DTD from a remote URL, which could lead to information disclosure or further exploitation.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Microsoft XML Core Services (MSXML) 3.0
No auth needed
Prerequisites: Victim must open the HTML file in a browser with ActiveX enabled · Network access to the external DTD URL
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (7)

Core 7
Core References
Mailing List vendor-advisory x_refsource_hp
http://marc.info/?l=bugtraq&m=122703006921213&w=2
US Government Resource third-party-advisory x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA08-316A.html
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5999
Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/32155
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/3111
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1021164

Scores

EPSS 0.5440
EPSS Percentile 98.1%

Details

CWE
CWE-200
Status published
Products (1)
microsoft/internet_explorer
Published Nov 12, 2008
Tracked Since Feb 18, 2026