CVE-2025-59902: Nice Chat

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

HTML injection vulnerability in NICE Chat. This vulnerability allows an attacker to inject and render arbitrary HTML content in email transcripts by modifying the 'firstName' and 'lastName' parameters during a chat session. The injected HTML is included in the body of the email sent by the system, which could enable phishing attacks, impersonation, or credential theft.

Affected products

• Nice Nice Chat: any version

Published 2026-02-03. Last modified 2026-06-17.