Login Lockdown & Protection <= 2.17 - Unauthenticated Login Lockout Protection Bypass
The Login Lockdown & Protection plugin for WordPress is vulnerable to Bypass Vulnerability in all versions up to, and including, 2.17. This is due to the is_rest_request() function trusting the user-supplied $_GET['rest_route'] parameter to determine whether a request is a REST API call, allowing any unauthenticated request to masquerade as a REST request and skip lockout enforcement. This makes it possible for unauthenticated attackers to bypass the login lockout protection entirely by supplying a crafted rest_route GET parameter, allowing unlimited login attempts regardless of configured lockout thresholds.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Login Lockdown & Protection | <= 2.17 | 2.18 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-693- Platform
- WordPress
- Package
Login Lockdown & Protection- Disclosed
- 05.10.2026
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - d4723d9e-9b37-4a1f-ad40-47a918018184 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Login Lockdown & Protection
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 11.2023 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 5
Disclosures per year
- 2023: 2
- 2024: 1
- 2025: 2
- 2026: 1
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Login Lockdown & Protection <= 2.17 - Unauthenticated Login Lockout Protection Bypass this entry
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