Internet Explorer vulnerable to cross-site scripting


Internet Explorer contains a cross-site scripting vulnerability.

Internet Explorer contains a cross-site scripting vulnerability due to the processing of malformed file names.

Keigo Yamazaki of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
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 and earlier


An arbitrary script may be executed on the user's web browser when the setting for "Use folder view for FTP sites" is turned off.

Note that this setting is turned on by default.

[Update the software]
Update to the latest version according to the information provided by the developer.
Vendor Information

Microsoft Corporation
CWE (What is CWE?)

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


  1. JVN : JVN#26408023
Revision History

  • [2011/06/16]
      Web page published