CVE-2023-40203 WordPress MailChimp Forms by MailMunch plugin <= 3.1.4 - Broken Access Control

Medium 4.3 Published Updated

Attackers can bypass access controls in the MailChimp Forms by MailMunch WordPress plugin to perform unauthorized actions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-40203?

CVE-2023-40203 is a medium-severity missing authorization vulnerability in MailChimp Forms by MailMunch, published on 13 Dec 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Missing Authorization vulnerability in MailMunch MailChimp Forms by MailMunch allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MailChimp Forms by MailMunch: from n/a through 3.1.4.

Weakness: CWE-862

Which versions are affected by CVE-2023-40203?

It affects 1 product.

Products include Mailmunch Mailchimp Forms.

How do I fix CVE-2023-40203?

No fix has been published for CVE-2023-40203 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-2023-40203 being exploited?

There is no known exploitation of CVE-2023-40203 in the wild and no public exploit code.

Sources

Also known as GHSA-476h-737f-mc4w.

Is CVE-2023-40203 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free