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GHSA-rqjw-p5vr-c695

HighCVSS 7.5 / 10
Published Jul 19, 2021·Last modified Mar 13, 2026
Affected Components(0)

No affected components available

Description

Impact

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.

Example affected gatsby-config.js:

      resolve: 'gatsby-source-wordpress',
        auth: {
          htaccess: {
            username: leaked_username
            password: leaked_password,
          },
        },

Patches

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.

Workarounds

There is no known workaround at this time, other than manually editing the app.js file post-build.

For more information

Email us at security@gatsbyjs.com

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
1.41%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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High severity
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