All Users Messenger <= 1.24 - Authenticated (Subscriber+) Insecure Direct Object Reference to Message Deletion

Authorization Bypass Through User-Controlled Key
CVE CVE-2023-4023
CVSS 5.4 (Medium)
Publicly Published August 7, 2023
Last Updated January 22, 2024
Researcher Dmitrii Ignatyev - CleanTalk Inc


The All Users Messenger plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 1.24 due to missing validation on a user controlled key. This can allow authenticated attackers with subscriber access to delete arbitrary messages.



1 affected software package

Software Type Plugin
Software Slug all-users-messenger (view on
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
  • <= 1.24

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