CVE-2025-66284
- State
- Published
- Severity
- 4.8 Medium
- Published
- Dec 12, 2025
- Updated
- Dec 12, 2025
- Reserved
- Nov 27, 2025
Description
Stored cross-site scripting vulnerabilities exist in GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1. 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | jpcert |
| 3.0 | 5.4 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | jpcert |
Weaknesses
- CWE-79 Cross-site scripting (XSS)
Affected Products
| Product | Versions |
|---|---|
GroupSession Free editionJapan Total System Co.,Ltd. |
|
GroupSession byCloudJapan Total System Co.,Ltd. |
|
GroupSession ZIONJapan Total System Co.,Ltd. |
|
References
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