CVE-2020-36838 HIGH

CVE-2020-36838: Facebook Chat Plugin <= 1.5 - Missing Capabilities Check

Vendor Facebook
Product Facebook Chat Plugin – Live Chat Plugin for WordPress
Weakness CWE-284
Published October 16, 2024
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 16, 2024 CVE published
April 8, 2026 Record updated