Vulnerability · Published Feb 3, 2026 · Assigned by INCIBE

CVE-2025-59902HTML injection in NICE Chat

High 7.1

In plain English

A high-severity cross-site scripting in NICE Chat from NICE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.4%top 68.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
NICE	NICE Chat	all versions

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://www.incibe.es/en/incibe-cert/notices/aviso/html-injection-nice-chat