MainWP (Various Extensions) - Authenticated (Subscriber+) Arbitrary Plugin Installation

Missing Authorization
CVSS 6.5 (Medium)
Publicly Published January 18, 2023
Last Updated January 20, 2023
Researcher Patchstack


Several MainWP extensions for WordPress are vulnerable to authorization bypass due to a missing capability check on an unknown function. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to install arbitrary plugins.



2 affected software packages

Software Type Plugin
Software Slug mainwp-blogvault-backup-extension
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 1.3
Software Type Plugin
Software Slug mainwp-favorites-extension
Patched? Yes
Remediation Update to version 4.0.11, or a newer patched version
Affected Version
  • <= 4.0.10
Patched Version
  • 4.0.11

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