---
id: CVE-2025-53858
title: ChatLuck contains a cross-site scripting vulnerability in Chat Rooms
summary: >-
  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.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2025-10-16'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-53858'
references:
  - url: 'https://jvn.jp/en/jp/JVN13030751/'
    label: vultures@jpcert.or.jp
  - url: >-
      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/
    label: vultures@jpcert.or.jp
tags:
  - nvd
epss: 0.00241
epssPercentile: 0.14048
ingestedAt: '2026-10-08T11:31:27.452Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.