CVE-2022-4303: The WP Limit Login Attempts WordPress plugin through 2.6.4 prioritizes getting a visitor's IP from certain HTT

Q: How do I fix CVE-2022-4303?

wp limit login attempts: upgrade to newer than 2.6.4. Exact commands for each OS are on this page.

Q: Is CVE-2022-4303 being exploited?

CVE-2022-4303 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-4303 affect?

CVE-2022-4303 affects wp limit login attempts. Severity is high (CVSS 7.5). The WP Limit Login Attempts WordPress plugin through 2.6.4 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass IP-based restrictions on login forms.

Q: How urgent is CVE-2022-4303?

Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2022-4303 is a high-severity flaw (CVSS 7.5) affecting wp limit login attempts. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP Limit Login Attempts WordPress plugin through 2.6.4 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass IP-based restrictions on login forms.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-290
Published	2023-01-23
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: ciphercoin

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-23 15:15 UTCPublished CVE record published
2026-06-17 05:20 UTCUpdated Record last modified

ciphercoin wp limit login attempts UPGRADE

Affected: <= 2.6.4

Fixed in: newer than 2.6.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wp-limit-login-attempts || rpm -q wp-limit-login-attempts || wp-limit-login-attempts --version

2. UPGRADE to newer than 2.6.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wp-limit-login-attempts

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wp-limit-login-attempts

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-4303?

wp limit login attempts: upgrade to newer than 2.6.4. Exact commands for each OS are on this page.

Is CVE-2022-4303 being exploited?

CVE-2022-4303 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-4303 affect?

CVE-2022-4303 affects wp limit login attempts. Severity is high (CVSS 7.5). The WP Limit Login Attempts WordPress plugin through 2.6.4 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass IP-based restrictions on login forms.

How urgent is CVE-2022-4303?

Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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