Movable Type Enterprise cross-site scripting vulnerability


Movable Type Enterprise contains a cross-site scripting vulnerability.

Movable Type Enterprise, a web log system from Six Apart KK for business users, contains a cross-site scripting vulnerability.

This vulnerability is different from JVN#02216739.

This vulnerability has been fixed in version 4.23 released on December 3, 2008. (UTC+0900)
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

Six Apart, Ltd.
  • Movable Type (enterprise) 4 (version 4.22 and earlier)


An arbitrary script may be executed on the user's web browser.

[Update the Software]
Update to the latest version according to the information provided by the vendor.
Vendor Information

Six Apart, Ltd.
CWE (What is CWE?)

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

  1. CVE-2008-5845

  1. JVN : JVN#71945722
  2. National Vulnerability Database (NVD) : CVE-2008-5845
  3. JVN iPedia (Japanese) : JVNDB-2009-000002
Revision History

  • [2009/01/13]
      Web page published
      Vendor Information : Added Six Apart  (Movable Type 4.23 Release Notes).
      Vendor Information : Added Six Apart  (MT 4.23 is now out).