CVE-2026-39107

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.

CVSS v3.1

6.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS

0.27% chance of exploitation in the next 30 days, 19th percentile

Published

2026-06-03

Proof-of-concept exploits (1)

• MGTx2/CVE-2026-391070★ · 2026-06-03

References

• CVE Record
• NVD entry

Related

• CVE-2026-3910
• CVE-2026-39292
• CVE-2026-3909
• CVE-2026-39305
• CVE-2026-3906
• CVE-2026-39306