Published:2018/08/30  Last Updated:2018/08/30

JVN#89550319
Movable Type vulnerable to cross-site scripting

Overview

Movable Type contains a cross-site scripting vulnerability.

Products Affected

  • Movable Type versions prior to Ver. 6.3.1

Description

Movable Type provided by Six Apart, Ltd. is a content management system. Movable Type contains a cross-site scripting vulnerability (CWE-79).

Impact

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

Solution

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

Apply a Workaround
If you continue to use older version that does not contains a fix for this vulnerability, apply the following workaround to mitigate the impact of this vulnerability.
Delete the directory listed below.

  • <MT_HOME>/php/extlib/adodb5/tests

Vendor Status

Vendor Status Last Update Vendor Notes
Six Apart, Ltd. Vulnerable 2018/08/30

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score: 6.1
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)
CVSS v2 AV:N/AC:M/Au:N/C:N/I:P/A:N
Base Score: 4.3
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Credit

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

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2018-0672
JVN iPedia JVNDB-2018-000094