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.

INFO

Published Date :

2025-12-12T05:02:22.443Z

Last Modified :

2025-12-12T20:22:14.823Z

Source :

jpcert
AFFECTED PRODUCTS

The following products are affected by CVE-2025-61987 vulnerability.

Vendors Products
Groupsession
  • Groupsession
  • Groupsession Bycloud
  • Groupsession Zion
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-61987.

URL Resource
https://groupsession.jp/info/info-news/security20251208 cve-icon cve-icon
https://jvn.jp/en/jp/JVN19940619/ cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact