CVE-2025-54461
MEDIUM
6.9
CVSS Score
Published: October 16, 2025 at 08:55 AM UTC
Updated: October 9, 2026 at 10:10 AM UTC
1 product affected across 1 vendorChatLuck
Using ChatLuck by NEOJAPAN Inc.?
Get instant alerts when new vulnerabilities affect ChatLuck - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.9
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
V6.6 R2.0 and earlier
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
Source: cverecord
https://jvn.jp/en/jp/JVN13030751/SSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.9MEDIUMjpcert
Vector?
Quick Info
StatusDEFERRED
CWE
CWE-1220
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card