CVE-2021-4404 Event Espresso 4 Decaf <= 4.10.11 - Cross-Site Request Forgery Bypass
Unauthenticated attackers can bypass CSRF protections to opt administrators into notifications via forged requests in the Event Espresso 4 Decaf plugin.
- 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-2021-4404?
CVE-2021-4404 is a medium-severity vulnerability in eventespresso Event Espresso – Event Registration & Ticketing Sales, published on 1 Jul 2023. 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
The Event Espresso 4 Decaf plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.10.11. This is due to missing or incorrect nonce validation on the ajaxHandler() function. This makes it possible for unauthenticated attackers to op into notifications via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Weakness: CWE-352
Which versions are affected by CVE-2021-4404?
It affects 1 product.
Products include Eventespresso Event Espresso 4 Decaf.
How do I fix CVE-2021-4404?
No fix has been published for CVE-2021-4404 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-4404 being exploited?
There is no known exploitation of CVE-2021-4404 in the wild and no public exploit code.
Sources
Also known as GHSA-6268-vp8g-p7c5.