# CVE-2024-4133: ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup <= 4.0.30 - Open Redirect

> Unauthenticated attackers can redirect users to malicious sites via the redirect_to parameter in the ARMember WordPress plugin.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 2 May 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-w3jc-x7jx-9rxx

## What is CVE-2024-4133?

CVE-2024-4133 is a medium-severity vulnerability in reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup, published on 2 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 4.0.30. This is due to insufficient validation on the redirect url supplied via the redirect_to parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2024-4133?


## How do I fix CVE-2024-4133?

No fix has been published for CVE-2024-4133 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-4133 being exploited?

There is no known exploitation of CVE-2024-4133 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-4133 and fix it if it is affected.

What it is: CVE-2024-4133 is a medium-severity vulnerability in reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup, published on 2 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-4133 in the wild and no public exploit code.

Affected product: reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup. 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-2024-4133/ (Markdown: https://insights.sbomify.com/CVE-2024-4133/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-4133
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-4133
- OSV: https://osv.dev/vulnerability/CVE-2024-4133

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-4133/
Summaries are generated and may contain mistakes; the official description above is the record.