CVE-2026-39107

A Cross Site Scripting vulnerability exists in the Kimi AI v1.0 web interface's 'Preview' feature

Medium · published June 3, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
22.5
In the wild
Unconfirmed
What it is

A Cross Site Scripting vulnerability exists in the Kimi AI v1.0 web interface's 'Preview' feature. The application fails to properly sanitize or encode HTML/JavaScript payloads generated by the AI model. When a user switches to the 'Preview' tab to view AI-generated code, the malicious payload is rendered directly into the DOM, leading to arbitrary JavaScript execution in the victim's browser session.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00309 · 22.5th percentile
Published
2026-06-03T00:00Z
EPSS history
Timeline
  • 03 JUN 00:00Z
    A Cross Site Scripting vulnerability exists in the Kimi AI v1.0 web interface's 'Preview' feature
    cvelistv5