CVE-2025-54461 Missing authorization in ChatLuck
Uninvited users can bypass access controls to register as guest users in ChatLuck, potentially gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-54461?
CVE-2025-54461 is a medium-severity missing authorization vulnerability in NEOJAPAN Inc. ChatLuck, published on 16 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-1220
Which versions are affected by CVE-2025-54461?
How do I fix CVE-2025-54461?
No fix has been published for CVE-2025-54461 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-54461 being exploited?
There is no known exploitation of CVE-2025-54461 in the wild and no public exploit code.
Sources
Also known as GHSA-fhch-v2x2-xm9c.