#VU117320 Insufficient Granularity of Access Control in ChatLuck - CVE-2025-54461
Published: October 16, 2025
Vulnerability identifier: #VU117320
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2025-54461
CWE-ID: CWE-1220
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ChatLuck
ChatLuck
Software vendor:
NEOJAPAN Inc.
NEOJAPAN Inc.
Description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient granularity of access control vulnerability in Invitation of Guest Users. A remote attacker can register itself as a guest user.
Remediation
Install updates from vendor's website.