CVE-2025-64781 MEDIUM

CVE-2025-64781

Vendor Japan Total System Co.,Ltd.
Product GroupSession Free edition
Weakness CWE-1188
Published December 12, 2025
Last update December 12, 2025
View on NVD All CVEs

CVSS base score

4.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, "External page display restriction" is set to "Do not limit" in the initial configuration. With this configuration, the user may be redirected to an arbitrary website when accessing a specially crafted URL.

Key dates

02Disclosure timeline

December 12, 2025 CVE published
December 12, 2025 Record updated