Reported vulnerability
Login Block IPs <= 1.0.0 - IP Spoofing to Protection Mechanism Bypass
Published 5 Sept 2022
Updated 22 Jan 2024
CVE-2022-1579
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 5.3The Login Block IPs plugin for WordPress is vulnerable to IP Address Spoofing in versions up to and including 1.0.0. This is due to insufficient restrictions on where the IP Address information is being retrieved in the check_is_login_page() function . Attackers can supply the HTTP_CLIENT_IP header with with a different IP Address that can be used to bypass any blocks.
Severity vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Login Block IPs
- Software
- plugin · login-block-ips
- Affected versions
- Start version unspecified, no upper version specified
- 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
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Get help with this issueQuestions about this vulnerability
Which versions of Login Block IPs are affected?
Wordfence lists these affected versions: Start version unspecified, no upper version specified. Use the version checker above to compare your installed release with this report.
Is a fix available for Login Block IPs?
Wordfence does not report a fix for this issue in Login Block IPs. 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.