CVE-2021-4425

Defender Security <= 2.4.6 - Cross-Site Request Forgery Bypass

MEDIUM
4.3
CVSS Score
Published: July 12, 2023 at 07:21 AM UTC
Updated: June 17, 2026 at 04:19 AM UTC
1 product affected across 1 vendorDefender

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Defender· Wpmudevwordpress-plugin
95%
v ≤ 2.4.6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-352

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