The Better Messages – Live Chat for WordPress, BuddyPress, PeepSo, Ultimate Member, BuddyBoss plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'better_messages_live_chat_button' shortcode in all versions up to, and including, 2.6.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Wordplus Better_Messages
cpe:2.3:a:wordplus:better_messages:*:*:*:*:*:wordpress:*:*
|
— |
2.7.0
|
References 5
https://plugins.trac.wordpress.org/browser/bp-better-messages/trunk/inc/shortco…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/trunk/inc/shortco…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/bp-better-messages/trunk/inc/shortco…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3228965/
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/169a857f-1ae0-40f6-8a…
security@wordfence.com