CVE-2025-67843

critical

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.

References

https://kibty.town/blog/mintlify/

https://www.mintlify.com/docs/changelog

https://www.mintlify.com/blog/working-with-security-researchers-november-2025

https://news.ycombinator.com/item?id=46317098

Details

Source: Mitre, NVD

Published: 2025-12-19

Updated: 2026-01-02

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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