Facebook Chat Plugin <= 1.5 - Missing Capabilities Check

2020-08-04 00:00

Chloe Chamberland

Strategic Overview

Status

Patched in 1.6

Affected PluginFacebook Chat Plugin – Live Chat Plugin for WordPress

Affected Version< 1.6

CVSS7.4High

CVECVE-2020-36838

View all Facebook Chat Plugin – Live Chat Plugin for WordPress vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 1.6, or a newer patched version --- IDENTIFIER: CWE-284 (Improper Access Control) The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

External References

https://www.cve.org/CVERecord?id=CVE-2020-36838 https://www.wordfence.com/threat-intel/vulnerabilities/id/36ae4183-5fa7-484c-b858-5df10ae3d3f2

CVSS Vector

7.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

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