ChatLuck contains an insufficient granularity of access control vulnerability in…
Priority LOW 36CWE-1220Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00329 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NEOJAPAN Inc. | ChatLuck | V6.6 R2.0 and earlier | — | No fix listed | CNA |
- ChatLuck VendorNEOJAPAN Inc. Affected V6.6 R2.0 and earlier Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-54461
- 2026-10-03 Alias added: GHSA-fhch-v2x2-xm9c
References
More NEOJAPAN Inc. vulnerabilities
- TI-2018-00639 Memory corruption in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
- TI-2018-00638 Memory corruption in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
- TI-2018-00637 Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
- TI-2018-00636 Hard-coded credentials in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
- TI-2018-00635 Hard-coded credentials in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
- TI-2018-00641 Unrestricted file upload in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0HIGH 8.8
Sources
- CVE-2025-54461 · CVE Program
- CVE-2025-54461 · NVD
- FIRST EPSS
- GHSA-fhch-v2x2-xm9c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences