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OpenAdvisories
Medium · 4.3 CVE-2025-61950 EUVD-2025-203022GHSA-gq66-gr4q-gqwp

In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization check is improperly implemented. …

Published Dec 12, 2025 · Updated Dec 12, 2025 · Assigned by jpcert

Description

In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization check is improperly implemented. With some crafted request, a logged-in user may alter the memo field. The affected products and versions are GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2.

Affected products

VendorProductAffectedFixed
Japan Total System GroupSession Free edition prior to ver5.3.0 —
Japan Total System GroupSession byCloud prior to ver5.3.3 —
Japan Total System GroupSession ZION prior to ver5.3.2 —

References