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CVE-2026-89334

MEDIUM 6.5 CVSS 3.1
Published
September 19, 2026
Last modified
September 21, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.15.33. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to access the full message transcript, thread metadata, and user data of any chat-room thread without authentication. This is only exploitable when the chat room's only_joined_can_read setting retains its default value of '0'.

Affected WordPress components

  • Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots Plugin · bp-better-messages
    Confirmed match Active
    Up to and including 2.15.33
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots — Up to and including 2.15.33

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/functions.php#L3533
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/functions.php#L3582
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/functions.php#L3601
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/rest-api.php#L181
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/rest-api.php#L1964
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/rest-api.php#L2598
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/rest-api.php#L418
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=bp-better-messages%2Ftags%2F2.15.33%2Finc%2Ffunctions.php&new_path=bp-better-messages%2Ftags%2F3.0.0%2Finc%2Ffunctions.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/b3243fe4-9d11-49f0-884b-0162cd776993?source=cve
  • nvd.nist.gov Official NVD record