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Medium · 5.3 CVE-2025-61987 EUVD-2025-203021GHSA-r3gq-2jpg-6v2w

GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. do not valida…

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

Description

GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. do not validate origins in WebSockets. If a user accesses a crafted page, Chat information sent to the user may be exposed.

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