Login Block IPs <= 1.0.0 — IP Spoofing to Protection Mechanism Bypass
CVE-2022-1579Published · Updated Action summary
Affected: all versionsNo patch available
What to do until a fix ships- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Login Block IPs login-block-ips
- Affectedall versions
- PatchedNo fix yet
No patched version available.
You are affected if you run all versions. No fixed version has been released.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Login Block IPs.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- 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.
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Login Block IPs to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Daniel Ruf.
The 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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Login Block IPs
All 2| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Cross-Site Request Forgery to Plugin Settings Update ≤1.0.0No patch available | CVE-2022-3098 |
- High8.8Cross-Site Request Forgery to Plugin Settings Update
≤1.0.0No patch available
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.