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WP Limit Login Attempts <= 2.6.4 — IP Spoofing to Protection Mechanism Bypass

CVE-2022-4303Published · Updated

Action summary

Affected: ≤2.6.4No patch available

What to do until a fix ships
Watch plugin
Severity
Medium6.5
CVSS
6.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-348 Use of Less Trusted Source
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WP Limit Login Attempts wp-limit-login-attempts

  1. Affected≤ 2.6.4
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 2.6.4. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Limit Login Attempts.
  • 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

  1. 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.
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WP Limit Login Attempts to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Daniel Ruf.

The WP Limit Login Attempts plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 2.6.4. This is due to the plugin prioritizing obtaining a visitor's IP address from a spoofable HTTP header over PHP's REMOTE_ADDR. Attackers can supply a header with with a different IP Address that can be used to bypass settings that may have blocked out an IP address.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in WP Limit Login Attempts

All 2
More vulnerabilities in WP Limit Login Attempts
SeverityVulnerabilityCVEPublished
Critical9.8SQL Injection
<2.0.1Update to 2.0.1
CVE-2015-6829
  • Critical9.8
    SQL Injection

    <2.0.1Update to 2.0.1

    CVE-2015-6829

Timeline

  1. CVE published

    Severity medium, CVSS 6.5

  2. 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.

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