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Fencer Vulns
medium 4.3

CVE-2008-4033 json

Cross-domain vulnerability in Microsoft XML Core Services 3.0 through 6.0, as used in Microsoft Expression Web, Office, Internet Explorer,…

published 2008-11-12 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4018

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
27.7%
EPSS 27.7% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

Cross-domain vulnerability in Microsoft XML Core Services 3.0 through 6.0, as used in Microsoft Expression Web, Office, Internet Explorer, and other products, allows remote attackers to obtain sensitive information from another domain and corrupt the session state via HTTP request header fields, as demonstrated by the Transfer-Encoding field, aka "MSXML Header Request Vulnerability."

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-7196)

Exploit prediction

27.75% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-7196 Microsoft XML Core Services DTD - Cross-Domain Scripting (MS08-069) remote, 2008-11-23

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.