What’s Vulnerable › Vulnerabilities
CVE-2025-61950
- Severity: medium (CVSS 5.3 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-12-12 · updated 2026-10-07
- Weakness: CWE-639
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
- Japan Total System Co.,Ltd. GroupSession: before 5.3.0; before 5.3.2; before 5.3.3 — fixed in 5.3.0, 5.3.2, 5.3.3
How to fix
Upgrade to a fixed version: Japan Total System Co.,Ltd. GroupSession 5.3.0, 5.3.2, 5.3.3. Check the vendor advisory for mitigations.
References
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