CVE-2025-64781 - CVE House
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Status published Medium CVE-2025-64781

In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Japan Total System Co.,Ltd.

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Affected Software

GroupSession Free edition, GroupSession byCloud, GroupSession ZION
Vulnerable Versions:
prior to ver5.7.1

Timeline

Official Publish: December 12th, 2025
Last Modified: December 12th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

Weaknesses (CWE)

CWE-1188

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.