# CVE-2022-4303: WP Limit Login Attempts <= 2.6.4 - IP Spoofing

> Attackers can bypass IP-based login restrictions by spoofing HTTP headers, allowing brute-force attacks against WordPress sites using this plugin.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jan 2023
- **Updated:** 2 Apr 2025
- **Also known as:** GHSA-mpvm-97hc-j3fx

## What is CVE-2022-4303?

CVE-2022-4303 is a high-severity vulnerability in Unknown WP Limit Login Attempts, published on 23 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-290 (Authentication Bypass by Spoofing)

## Which versions are affected by CVE-2022-4303?

It affects 1 product.


Products: Ciphercoin Wp Limit Login Attempts.

## How do I fix CVE-2022-4303?

No fix has been published for CVE-2022-4303 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4303 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4303 exists.

## Other vulnerabilities in Unknown WP Limit Login Attempts

- [CVE-2015-6829](https://insights.sbomify.com/CVE-2015-6829/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4303 and fix it if it is affected.

What it is: CVE-2022-4303 is a high-severity vulnerability in Unknown WP Limit Login Attempts, published on 23 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4303 exists.

Affected product: Unknown WP Limit Login Attempts. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-4303/ (Markdown: https://insights.sbomify.com/CVE-2022-4303/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4303
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4303
- OSV: https://osv.dev/vulnerability/CVE-2022-4303

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4303/
Summaries are generated and may contain mistakes; the official description above is the record.