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'.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 9
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/tags/2.15.33/inc/…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?old_path=bp-better-messages%2Ftags…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/b3243fe4-9d11-49f0-88…
security@wordfence.com