JVN#76729865
Multiple vulnerabilities in Movable Type

Overview

Movable Type provided by Six Apart Ltd. contains multiple vulnerabilities.

Products Affected

Software Edition

• Movable Type / Movable Type Advanced
  • 8.0.0 to 8.0.6, 8.4.0 to 8.4.2 (8 series)
  • 7 r.5508 and earlier (7 series)
• Movable Type Premium / Movable Type Premium (Advanced Edition)
  • 2.09 and earlier (2 series)
  • 1.66 and earlier (1 series)

• Movable Type
  • 8.6.0 (8 series)
  • 7 r.5508 (7 series)
• Movable Type Premium
  • 2.09 (2 series)
  • 1.66 (1 series)

Description

Movable Type provided by Six Apart Ltd. contains multiple vulnerabilities listed below.

• Use of less trusted source（CWE-348）
  • CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N Base Score 6.9
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Base Score 5.3
  • CVE-2025-53522
• Open redirect（CWE-601）
  • CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N Base Score 5.1
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Base Score 4.3
  • CVE-2025-55706

Impact

• Tampered email to reset a password may be sent by a remote unauthenticated attacker (CVE-2025-53522)
• An invalid parameter may be inserted into the password reset page, which may lead to redirection to an arbitrary URL (CVE-2025-55706)

Solution

Update the Software
Apply the appropriate update according to the information provided by the developer.
The developer has released the following updates that contain fixes for these vulnerabilities.

• Movable Type / Movable Type Advanced 8.7.0 (Only available in Cloud Edition）
• Movable Type / Movable Type Advanced 8.0.7, 8.4.3 (Only available in Software Edition）
• Movable Type / Movable Type Advanced 7 r.5509
• Movable Type Premium / Movable Type Premium (Advanced Edition) 2.10
• Movable Type Premium / Movable Type Premium (Advanced Edition) 1.67