CVE-2026-75903
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk42th percentile - higher than 42% of all known CVEs
Summary
The Vulnity Security plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.4.3. This is due to insufficient protection of the delegated-login pairing credential file on Nginx-based installations, where the plugin's generated server configuration snippet guards the wrong directory path.
Risk Assessment
An unauthenticated attacker can gain administrator privileges, leading to full compromise of the WordPress site. This can result in malware installation, data theft, or further attacks.
Recommendation
Update the Vulnity Security plugin to a version later than 1.4.3. Review and correct the Nginx configuration to protect the correct directory containing the credential file.
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Original NVD description (English source)
The Vulnity Security plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.4.3 This is due to insufficient protection of the delegated-login pairing credential file on Nginx-based installations, where the plugin's generated server configuration snippet guards the wrong directory path. This makes it possible for unauthenticated attackers to retrieve the stored credentials, forge signed REST API requests, and log in as an administrator.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

