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OpenAdvisories
Medium · 5.4 CVE-2025-53523 EUVD-2025-203026GHSA-95x3-5ffc-v69j

Stored cross-site scripting vulnerabilities exist in GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, a…

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

Description

Stored cross-site scripting vulnerabilities exist in GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. A logged-in user can prepare a malicious page or URL, and an arbitrary script may be executed on the web browser when another user accesses it.

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