Cross-Site Request Forgery Vulnerability in GroupSession by GroupSession Inc.
CVE-2021-20786

4.3MEDIUM

Key Information:

Vendor

Japan Total System Co.,ltd.

Status
Groupsession
Vendor
CVE Published:
30 July 2021

What is CVE-2021-20786?

A cross-site request forgery (CSRF) vulnerability exists in multiple versions of GroupSession, specifically impacting the Free edition, byCloud, and ZION products. This flaw allows remote attackers to exploit a specially crafted URL to hijack the authentication of administrators, potentially leading to unauthorized administrative access and control over the affected servers. Users are advised to update to the latest version to mitigate this risk.

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Affected Version(s)

GroupSession GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0

References

https://groupsession.jp/info/info-news/security202107
x_refsource_MISC
https://jvn.jp/en/jp/JVN86026700/index.html
x_refsource_MISC

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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