CVE-2021-4416 wp-mpdf <= 3.5.1 - Cross-Site Request Forgery Bypass
Unauthenticated attackers can trick administrators into saving post data via forged requests due to missing nonce validation in the wp-mpdf 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-2021-4416?
CVE-2021-4416 is a medium-severity vulnerability in fkrauthan wp-mpdf, published on 12 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 wp-mpdf plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.5.1. This is due to missing or incorrect nonce validation on the mpdf_admin_savepost() function. This makes it possible for unauthenticated attackers to save post data 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-2021-4416?
It affects 1 product.
Products include Wp-Mpdf Project Wp-Mpdf.
How do I fix CVE-2021-4416?
No fix has been published for CVE-2021-4416 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-4416 being exploited?
There is no known exploitation of CVE-2021-4416 in the wild and no public exploit code.
Sources
Also known as GHSA-pmjg-6h25-mhp4.