Insufficient Granularity of Access Control in ChatLuck - CVE-2025-54461

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Main Vulnerability Database Vulnerabilities #VU117320

Insufficient Granularity of Access Control in ChatLuck - CVE-2025-54461

Published: October 16, 2025


Vulnerability identifier: #VU117320
CSH Severity: Medium
CVSS v4.0: 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
Vendor: NEOJAPAN Inc.
Affected software:
ChatLuck

Detailed vulnerability 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.


How to mitigate CVE-2025-54461

Install updates from vendor's website.

Sources