CVE-2021-4421 Advanced Popups <= 1.1.1 - Cross-Site Request Forgery Bypass
Unauthenticated attackers can trick administrators into saving meta tags via forged requests in the Advanced Popups WordPress 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-2021-4421?
CVE-2021-4421 is a medium-severity vulnerability in codesupplyco Advanced Popups, 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 Advanced Popups plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.1. This is due to missing or incorrect nonce validation on the metabox_popup_save() function. This makes it possible for unauthenticated attackers to save meta tags 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-2021-4421?
It affects 1 product.
Products include Ashstonestudios Advanced Popups.
How do I fix CVE-2021-4421?
No fix has been published for CVE-2021-4421 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-4421 being exploited?
There is no known exploitation of CVE-2021-4421 in the wild and no public exploit code.
Sources
Also known as GHSA-842w-2972-7683.