Vulnerability Details: Authenticated Arbitrary File Viewing in Health Check & Troubleshooting
According to Matt Mullenweg one of the projects for WordPress in 2019 is “Merging the site health check plugin into Core, to assist with debugging and encouraging good software hygiene.” What seems like bad software hygiene would be to merge in software which hasn’t had a basic security review to another piece of software used on millions of websites, which brings us to one of the changelog entries for the latest version of that plugin:
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This post provides insights on a vulnerability in the WordPress plugin Health Check & Troubleshooting not discovered by us, where the discoverer hadn't provided the details needed for us to confirm the vulnerability while we were adding it to the data set for our service, so the rest of its contents are limited to subscribers of our service.
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