Vulnerability · Published Oct 16, 2025 · Assigned by jpcert
CVE-2025-53858
Medium 5.4
In plain English
A medium-severity cross-site scripting in ChatLuck from NEOJAPAN Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.0)5.4Medium
Exploit odds (30 days)0.2%top 83.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ChatLuck contains a cross-site scripting vulnerability in Chat Rooms. If exploited, an arbitrary script may be executed on the web browser of the user who is accessing the product.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NEOJAPAN Inc. | ChatLuck | V6.6 R2.0 and earlier |
Weakness: CWE-79 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N