Threat intelligence

Login With Ajax – Fast Logins, 2FA, Redirects <= 4.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVE-2026-66640 · login-with-ajax

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

Vulnerability: Login With Ajax – Fast Logins, 2FA, Redirects <= 4.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected software: login-with-ajax(Plugin)
Affected versions: ≤ 4.5.1
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-66640
Published: 18 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory 5cbdcfd4-8bab-4b2a-aaae-59e50c7e02a8). Methodology and redistribution notes

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