CVE-2025-61987 | THREATINT

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.

PUBLISHED Reserved 2025-11-27 | Published 2025-12-12 | Updated 2025-12-12 | Assigner jpcert

MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

Missing origin validation in WebSockets

Product status

prior to ver5.3.0

affected

prior to ver5.3.3

affected

prior to ver5.3.2

affected

References

groupsession.jp/info/info-news/security20251208

jvn.jp/en/jp/JVN19940619/

cve.org (CVE-2025-61987)

nvd.nist.gov (CVE-2025-61987)

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