Internet Explorer vulnerable to cross-site scripting


Microsoft Internet Explorer contains a cross-site scripting vulnerability due to the way file types are determined.

Microsoft Internet Explorer contains a vulnerability in handling Content-Type, which may result in cross-site scripting.

For more information, refer to the information provided by Microsoft.

Yoshinari Fukumoto of Rakuten, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

Base Metrics: 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None

Affected Products

Microsoft Corporation
  • Microsoft Internet Explorer 6
  • Microsoft Internet Explorer 7
  • Microsoft Internet Explorer 8
  • Microsoft Windows 7
  • Microsoft Windows 7 for x64-based Systems
  • Microsoft Windows Vista SP1 and SP2
  • Microsoft Windows Vista x64 Edition SP1 and SP2
  • Microsoft Windows XP SP3
  • Microsoft Windows XP Professional x64 Edition SP2


An arbitrary script may be executed.

[Update the Software]
Apply the latest update according to the information provided by Microsoft.
Vendor Information

Microsoft Corporation
  • Microsoft Security Bulletin : MS10-090
  • FUJITSU Security Information : TA10-348A (Japanese)
CWE (What is CWE?)

  1. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2010-3342

  1. JVN : JVN#62275332
  2. National Vulnerability Database (NVD) : CVE-2010-3342
  3. Secunia Advisory : SA42091
  4. SecurityFocus : 45256
  5. VUPEN Security : VUPEN/ADV-2010-3214
Revision History

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