CVE-2025-66469: nicegui before 3.4.0 (exclusive), < 3.4.0

CVE-2025-66469. CVSS 3.1 base score 6.1 (MEDIUM, Vendor/CNA). EPSS 0.00275 (percentile 0.1868), scored 19-Oct-2026.

Affected technology

nicegui · before 3.4.0 (exclusive)
zauberzeug

nicegui · < 3.4.0
zauberzeug

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

An attacker can break out of the intended or ), allowing for the execution of arbitrary JavaScript. Vendor/CNA’s CVSS 3.1 assessment (base score 6.1/10) rates confidentiality and integrity impact as low; availability impact as none.

Published 19-Oct-2026 19:47 UTC

CWE: CWE-79
CCR priority: 24.5 /100 (P4)
CVSS 3.1: 6.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · Vendor/CNA
EPSS: 0.00275 · percentile 0.1868 · 2026-10-19
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-19 19:46:42.191502+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-66469.html