CVE-2025-67843

PoC —

CVSS 3.1

9.8 critical

EPSS

1%p64

Published

Dec 19, 2025 (Dec 19, 2025)

Modified

Jun 17, 2026

Description

A Server-Side Template Injection (SSTI) vulnerability in the MDX Rendering Engine in Mintlify Platform before 2025-11-15 allows remote attackers to execute arbitrary code via inline JSX expressions in an MDX file.

Vendors: mintlify
Products: mintlify
Weakness: CWE-1336
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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