CVE-2022-36340 WordPress MailOptin plugin <= 1.2.49.0 - Unauthenticated Optin Campaign Cache Deletion vulnerability

Q: What is CVE-2022-36340?

CVE-2022-36340 is a medium-severity missing authorization vulnerability in MailOptin (WordPress plugin), published on 23 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2022-36340 being exploited?

There is no known exploitation of CVE-2022-36340 in the wild and no public exploit code.

Q: How do I fix CVE-2022-36340?

No fix has been published for CVE-2022-36340 yet. Limit exposure of the affected software until one is available.

Medium 6.5 Published 23 Sep 2022 Updated 28 Apr 2026

Unauthenticated attackers can delete optin campaign caches in the MailOptin WordPress plugin due to missing authorization checks.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-36340?

CVE-2022-36340 is a medium-severity missing authorization vulnerability in MailOptin (WordPress plugin), published on 23 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated Optin Campaign Cache Deletion vulnerability in MailOptin plugin <= 1.2.49.0 at WordPress.

Weakness: CWE-862

Which versions are affected by CVE-2022-36340?

It affects 1 product.

Products include Mailoptin Mailoptin.

How do I fix CVE-2022-36340?

No fix has been published for CVE-2022-36340 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-2022-36340 being exploited?

There is no known exploitation of CVE-2022-36340 in the wild and no public exploit code.

Sources

Also known as GHSA-8jh8-j7rp-79hx.