CVE-2020-36838

Facebook Chat Plugin <= 1.5 - Missing Capabilities Check

HIGH
7.4
CVSS Score
Published: October 16, 2024 at 06:43 AM UTC
Updated: June 17, 2026 at 03:16 AM UTC
1 product affected across 1 vendorFacebook Chat Plugin

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Severity
HIGH7.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.6
Affected range stops below 1.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-284

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