Vulnerability Report

CVE-2026-39107

Title: Kimi AI: Cross-Site Scripting in Preview feature

XSS

Proof Of Concept

PoC Available for CVE-2026-39107

CWE Category NVD-CWE-noinfo

Published Date Jun 03, 2026

Modified Date Jun 04, 2026

Exploit Status Available

Score 6.3 CVSS v

Exploit Probability (EPSS)

0.27%

Vulnerability Summary

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.

Impacted Vendors

Analysis in Progress...

Reference Links

https://github.com/MGTx2 https://github.com/MGTx2/CVE-2026-39107

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity MEDIUM

6.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-39107 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/MGTx2/CVE-2026-39107

View Code

June 04, 2026 MODIFIED

Vulnerability data updated via NVD.

June 03, 2026 MODIFIED

Vulnerability data updated via NVD.

June 03, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


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

Affected Stack

No specific products linked.