VULNERABILITY INTELLIGENCE
CVE-2021-4425
CVSS score4.3 MEDIUM
EPSS probability0.56%
CISA KEVNot currently listed
Published2023-07-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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 classification
- CWE-352: Cross-Site Request Forgery (CSRF)
Primary references
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com — Patch, Product
- security@wordfence.com — Exploit, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory