CVE-2025-66284

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://groupsession.jp/info/info-news/security20251208
https://jvn.jp/en/jp/JVN19940619/

Configurations

No configuration.

History

12 Dec 2025, 05:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-12 05:16

Updated : 2025-12-12 15:17

NVD link : CVE-2025-66284

Mitre link : CVE-2025-66284

CVE.ORG link : CVE-2025-66284

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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