CVE-2022-4303Public exploitNetwork attack vector

Unauthenticated login-lockout bypass via spoofed IP headers

Published Jan 23, 2023 · Updated Apr 2, 2025

IP address spoofing in Arshid WP Limit Login Attempts 2.6.4 and earlier allows remote attackers to bypass login lockouts via HTTP headers. The plugin's IP-selection logic trusts client-supplied proxy headers before PHP's REMOTE_ADDR, so a request replaces the address used for rate-limit tracking. An unauthenticated attacker can rotate the apparent source address after a block and continue password guesses against the login form.

CVSS severity7.5
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

IP address spoofing in Arshid WP Limit Login Attempts 2.6.4 and earlier allows remote attackers to bypass login lockouts via HTTP headers. The plugin's IP-selection logic trusts client-supplied proxy headers before PHP's REMOTE_ADDR, so a request replaces the address used for rate-limit tracking. An unauthenticated attacker can rotate the apparent source address after a block and continue password guesses against the login form.

The record

CVE
CVE-2022-4303
Published
Jan 23, 2023
Updated
Apr 2, 2025
Vendor
Arshid
Product
WP Limit Login Attempts
Classifications
CWE-290, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Arshid · WP Limit Login Attemptsversion=0 <=2.6.4

Published CVSS scores

7.5NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1110Brute Force

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo