CVE-2022-25863

Name: CVE-2022-25863
Creator: NVD / NIST
Published: 2022-06-10T20:15:08.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.82%

Last modified Jun 17, 2026

CVE-2022-25863 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The package gatsby-plugin-mdx before 2.14.1, from 3.0.0 and before 3.15.2 are vulnerable to Deserialization of Untrusted Data when passing input through to the gray-matter package, due to its default configurations that are missing input sanitization. Exploiting this vulnerability is possible when passing input in both webpack (MDX files in src/pages or MDX file imported as a component in frontend / React code) and data mode (querying MDX nodes via GraphQL). EPSS estimates a 1.82% chance of exploitation in the next 30 days.

Description

The package gatsby-plugin-mdx before 2.14.1, from 3.0.0 and before 3.15.2 are vulnerable to Deserialization of Untrusted Data when passing input through to the gray-matter package, due to its default configurations that are missing input sanitization. Exploiting this vulnerability is possible when passing input in both webpack (MDX files in src/pages or MDX file imported as a component in frontend / React code) and data mode (querying MDX nodes via GraphQL). Workaround: If an older version of gatsby-plugin-mdx must be used, input passed into the plugin should be sanitized ahead of processing.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.82%

76.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Gatsbyjs	Gatsby	< 2.14.1
Gatsbyjs	Gatsby	>= 3.0.0, < 3.15.2

References

https://drive.google.com/file/d/1EoCzbwTWOM8-fjvwMbH3bqcZ2iKksxTW/view?usp=sharingExploit, Third Party Advisory
https://github.com/gatsbyjs/gatsby/pull/35830Exploit, Patch, Third Party Advisory
https://github.com/gatsbyjs/gatsby/pull/35830/commits/f214eb0694c61e348b2751cecd1aace2046bc46ePatch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-GATSBYPLUGINMDX-2405699Exploit, Third Party Advisory
https://drive.google.com/file/d/1EoCzbwTWOM8-fjvwMbH3bqcZ2iKksxTW/view?usp=sharingExploit, Third Party Advisory
https://github.com/gatsbyjs/gatsby/pull/35830Exploit, Patch, Third Party Advisory
https://github.com/gatsbyjs/gatsby/pull/35830/commits/f214eb0694c61e348b2751cecd1aace2046bc46ePatch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-GATSBYPLUGINMDX-2405699Exploit, Third Party Advisory

Timeline

Published: Jun 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-25863?

How severe is CVE-2022-25863?

CVE-2022-25863 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.82% probability of exploitation in the next 30 days.

How do I fix CVE-2022-25863?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-25863?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST