CVE-2025-53624 — Vulnerability in docusaurus-plugin-content-gists...

## GitHub Personal Access Token Exposure in docusaurus-plugin-content-gists ### Summary docusaurus-plugin-content-gists versions prior to 4.0.0 are vulnerable to exposing GitHub Personal Access Tokens in production build artifacts when passed through plugin configuration options. The token, intended for build-time API access only, is inadvertently included in client-side JavaScript bundles, making it accessible to anyone who can view the website's source code. ### Affected Versions - All versions < 4.0.0 ### Patched Versions - Version 4.0.0 and later ### Impact When using the affected versions with the recommended configuration pattern: ```javascript plugins: [ [ 'docusaurus-plugin-content-gists', { personalAccessToken: process.env.GITHUB_PERSONAL_ACCESS_TOKEN, }, ], ] ``` The GitHub Personal Access Token is included in the webpack bundle and exposed in production builds at: - `/build/assets/js/main.[hash].js` This allows malicious actors to: - Extract the GitHub Personal Access Token from the website's JavaScript files - Use the stolen token to access the token owner's GitHub account with the granted permissions - Potentially access private gists, repositories, or perform other actions depending on the token's scope ## Mitigation steps 1. Immediately revoke access to the GitHub PAT that was used: https://github.com/settings/tokens ### Migration steps 1. Update to version 4.0.0+: `npm install docusaurus-plugin-content-gists@^4.0.0` 3. Remove `personalAccessToken` from your plugin configuration 4. Ensure `GH_PERSONAL_ACCESS_TOKEN` is set in your build environment