Facebook Chat Plugin <= 1.5 - Missing Capabilities Check

Improper Access Control
CVE CVE-2020-36838
CVSS High (7.4)
Publicly Published August 4, 2020
Last Updated October 16, 2024
Researcher Chloe Chamberland
Description

The Facebook Chat Plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the wp_ajax_update_options function in versions up to, and including, 1.5. This flaw makes it possible for low-level authenticated attackers to connect their own Facebook Messenger account to any site running the vulnerable plugin and engage in chats with site visitors on affected sites.

References

1 affected software package

Software Type Plugin
Software Slug facebook-messenger-customer-chat (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.6
Patched Version
  • 1.6
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