Threat intelligence

Persistent Login <= 3.1.0 - Authenticated (Subscriber+) SQL Injection

CVE-2026-66594 · wp-persistent-login

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Wp Persistent Login at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Persistent Login <= 3.1.0 - Authenticated (Subscriber+) SQL Injection
Affected software: wp-persistent-login(Plugin)
Affected versions: ≤ 3.1.0
Authentication: Authenticated (see advisory title)
Vulnerability type: SQL injection
CVE: CVE-2026-66594
Published: 19 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to read or modify database contents beyond intended access.
Source: Data imported from Wordfence Intelligence (advisory 46d537b7-7d07-4d2b-83d7-484c240b6e72). Methodology and redistribution notes

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