CVE-2025-54461

State: Published
Severity: 6.9 Medium
Published: Oct 16, 2025
Updated: Oct 16, 2025
Reserved: Sep 2, 2025

Description

ChatLuck contains an insufficient granularity of access control vulnerability in Invitation of Guest Users. If exploited, an uninvited guest user may register itself as a guest user.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	jpcert
3.0	5.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	jpcert

Weaknesses

CWE-1220 Insufficient Granularity of Access Control

Affected Products

Product	Versions
ChatLuckNEOJAPAN Inc.	V6.6 R2.0 and earlierAffected

References

https://www.chatluck.com/support/package/mainte/pchatluck-%e8%a3%bd%e5%93%81%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%80%81%e8%a4%87%e6%95%b0%e3%81%ae%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e4%b8%8a%e3%81%ae%e5%95%8f%e9%a1%8c%e3%81%ab/
https://jvn.jp/en/jp/JVN13030751/

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