TI-2023-04683 Aliases CVE-2023-5089 GHSA-j6r3-vq2c-4ghw

Defender Security < 4.1.0 - Protection Bypass (Hidden Login Page)

MEDIUM 63Published 2023-10-16 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Defender Security WordPress plugin before 4.1.0 does not prevent redirects to the login page via the auth_redirect WordPress function, allowing an unauthenticated visitor to access the login page, even when the hide login page functionality of the plugin is enabled.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.02473 84th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by the CNA and NVD

Fix Fixed Defender Security (Unknown): 4.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Defender Security	before 4.1.0	4.1.0	Patch available	CNA

Defender Security VendorUnknown Affected before 4.1.0 Fixed in 4.1.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wpmudev:defender_security::::::wordpress::*	before 4.1.0	Vulnerable	wpmudev

cpe:2.3:a:wpmudev:defender_security:*:*:*:*:*:wordpress:*:* Versions before 4.1.0 Vulnerable ·wpmudev

Remediation

Fix · CNA Defender Security (Unknown) Fixed in 4.1.0

Timeline

2026-10-02 Threatist record created from CVE-2023-5089
2026-10-03 Alias added: GHSA-j6r3-vq2c-4ghw

References

Exploit 2

TI-2023-28142 WordPress Defender Security Plugin <= 4.1.0 is vulnerable to Sensitive Data Exposure CVSS 3.1HIGH 7.5
TI-2021-03282 Defender Security <= 2.4.6 - Cross-Site Request Forgery Bypass CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences