CVE-2020-36838 Facebook Chat Plugin <= 1.5 - Missing Capabilities Check
Low-privilege users can bypass authorization checks to connect their Facebook Messenger account to any site using the plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36838?
CVE-2020-36838 is a high-severity missing authorization vulnerability in Facebook Chat Plugin – Live Chat Plugin for WordPress, published on 16 Oct 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2020-36838?
How do I fix CVE-2020-36838?
No fix has been published for CVE-2020-36838 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-36838 being exploited?
There is no known exploitation of CVE-2020-36838 in the wild and no public exploit code.
Sources
Also known as GHSA-jw54-249h-29hc.