CVE-2022-25863 Deserialization of Untrusted Data
Attackers can execute arbitrary code by exploiting unsafe deserialization in the Gatsby MDX plugin when processing untrusted input.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-25863?
CVE-2022-25863 is a high-severity unsafe deserialization vulnerability in gatsby-plugin-mdx, published on 10 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2022-25863?
4 open source packages ship an affected version, including gatsby-plugin-mdx. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gatsby-plugin-mdx npm | All versions | 2.14.1 |
gatsby-plugin-mdx npm | All versions | 2.14.1 |
gatsby-plugin-mdx npm | From 3.0.0 | 3.15.2 |
gatsby-plugin-mdx npm | From 3.0.0 | 3.15.2 |
Products include Gatsbyjs Gatsby-Plugin-Mdx.
How do I fix CVE-2022-25863?
Upgrade gatsby-plugin-mdx to a fixed version for your release line: 2.14.1 or 3.15.2.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2022-25863 being exploited?
There is no known exploitation of CVE-2022-25863 in the wild and no public exploit code.
Sources
Also known as GHSA-mj46-r4gr-5x83, SNYK-JS-GATSBYPLUGINMDX-2405699.