Reported vulnerability
Login With Ajax – Fast Logins, 2FA, Redirects <= 4.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Published 18 Aug 2026
Updated 24 Aug 2026
CVE-2026-66640
Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.
Does this affect my version?
Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.
Wordfence advisory
medium · CVSS 6.4The Login With Ajax – Fast Logins, 2FA, Redirects plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 4.5.1. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Login With Ajax – Fast Logins, 2FA, Redirects
- Software
- plugin · login-with-ajax
- Affected versions
- Start version unspecified, through 4.5.1
- Fix availability
- No fix reported
- Fixed versions
- No fixed version specified
Recommended action
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Further references (1)
Data sources and licences
Copyright 2012-2026 Defiant Inc.
Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.
Read licence termsCopyright 1999-2026 The MITRE Corporation
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
Read licence termsSource: Wordfence
Need help fixing this issue?
Get help checking your site, applying an available update and resolving any problems after updating.
Get help with this issueQuestions about this vulnerability
Which versions of Login With Ajax – Fast Logins, 2FA, Redirects are affected?
Wordfence lists these affected versions: Start version unspecified, through 4.5.1. Use the version checker above to compare your installed release with this report.
Is a fix available for Login With Ajax – Fast Logins, 2FA, Redirects?
Wordfence does not report a fix for this issue in Login With Ajax – Fast Logins, 2FA, Redirects. Read the source report and ask the developer or your website support team what action to take.
Where can I find my installed plugin version?
In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.
Does an affected version mean my website has been hacked?
An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.
Other reports for the same product
These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.
- Login With Ajax – Fast Logins, 2FA, Redirects <= 4.5.1 - Authenticated (Customer+) Stored Cross-Site ScriptingUpdated 9 Sept 2026
- Login With Ajax <= 4.1 - Cross-Site Request Forgery to Notice DismissalUpdated 17 Apr 2024
- Login With Ajax <= 4.1 - Missing AuthorizationUpdated 23 Feb 2024
- Login With Ajax <= 3.1.6 - Cross-Site ScriptingUpdated 22 Jan 2024
- Login With Ajax < 3.1 - Cross-Site Request ForgeryUpdated 22 Jan 2024