Published:2014/09/09  Last Updated:2014/09/11

Movable Type vulnerable to cross-site scripting


Movable Type provided by Six Apart, Ltd. contains a cross-site scripting vulnerability.

Products Affected

  • Movable Type 5.14 and earlier
According to the developer, this vulnerability was addressed in Movable Type 5.2.


Movable Type contains an issue in processing the management page, which may result in a cross-site scripting vulnerability.


An arbitrary script may be executed or a false form may be displayed on the administrator's web browser.


Update the software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
Six Apart, Ltd. Vulnerable 2014/09/10


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2014.09.09 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions or extenuating circumstances do not exist.
Authentication(Au) Multiple (M) Single (S) None (N) The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is no impact to the confidentiality of the system.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is no impact to the availability of the system.

Base Score:4.0


Saeki Tominaga reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2014-5313
JVN iPedia JVNDB-2014-000104

Update History

Information under the section "Products Affected" was modified.