CVE-2023-51490

WordPress Defender Security Plugin <= 4.1.0 is vulnerable to Sensitive Data Exposure

Published Jan 8, 2024 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in WPMU DEV Defender Security – Malware Scanner, Login Security & Firewall.This issue affects Defender Security – Malware Scanner, Login Security & Firewall: from n/a through 4.1.0.

Remediation

Vendor Solution

Update to 4.2.0 or a higher version.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-56203 Exposure of Sensitive Information to an Unauthorized Actor vulnerability in WPMU DEV Defender Security – Malware Scanner, Login Security & Firewall.This issue affects Defender Security – Malware Scanner, Login Security & Firewall: from n/a through 4.1.0.
History
Type Values Removed Values Added
Description Exposure of Sensitive Information to an Unauthorized Actor vulnerability in WPMU DEV Defender Security – Malware Scanner, Login Security & Firewall.This issue affects Defender Security – Malware Scanner, Login Security & Firewall: from n/a through 4.1.0. Exposure of Sensitive Information to an Unauthorized Actor vulnerability in WPMU DEV Defender Security – Malware Scanner, Login Security & Firewall.This issue affects Defender Security – Malware Scanner, Login Security & Firewall: from n/a through 4.1.0.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Apr 28, 2026, 4:09 PM
Reserved
Dec 20, 2023, 3:32 PM
Status
Modified
Published
Jan 8, 2024, 9:15 PM
Modified
Jun 17, 2026, 6:41 AM