CVE-2025-66284 | THREATINT

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.

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

MEDIUM: 5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

MEDIUM: 4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Problem types

Cross-site scripting (XSS)

Product status

prior to ver5.7.1

affected

prior to ver5.7.1

affected

prior to ver5.7.1

affected

References

groupsession.jp/info/info-news/security20251208

jvn.jp/en/jp/JVN19940619/

cve.org (CVE-2025-66284)

nvd.nist.gov (CVE-2025-66284)

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