CVE-2021-4425 Defender Security <= 2.4.6 - Cross-Site Request Forgery Bypass
Unauthenticated attackers can bypass one-time login verification via CSRF by tricking administrators into clicking a link.
- 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-2021-4425?
CVE-2021-4425 is a medium-severity vulnerability in wpmudev Defender Security – Malware Scanner, Login Security & Firewall, 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 Defender Security plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.4.6. This is due to missing or incorrect nonce validation on the verify_otp_login_time() function. This makes it possible for unauthenticated attackers to verify a one time login 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-2021-4425?
It affects 1 product.
Products include Wpmudev Defender Security.
How do I fix CVE-2021-4425?
No fix has been published for CVE-2021-4425 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-4425 being exploited?
There is no known exploitation of CVE-2021-4425 in the wild and no public exploit code.
Other vulnerabilities in wpmudev Defender Security – Malware Scanner, Login Security & Firewall
Sources
Also known as GHSA-wmpx-27x6-m5w5.