# CVE-2023-2546: WP User Switch <= 1.0.2 - Authenticated (Subscriber+) Authentication Bypass via Cookie

> Authenticated subscribers can bypass authentication via cookie manipulation to log in as any user, including administrators, in the WP User Switch plugin.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Jun 2023
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-gr6h-jrp8-gp49

## What is CVE-2023-2546?

CVE-2023-2546 is a high-severity authentication bypass vulnerability in iqbalrony WP User Switch, published on 6 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The WP User Switch plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 1.0.2. This is due to incorrect authentication checking in the 'wpus_allow_user_to_admin_bar_menu' function with the 'wpus_who_switch' cookie value. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to log in as any existing user on the site, such as an administrator, if they have access to the username.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2023-2546?

It affects 1 product.


Products: Wp User Switch Project Wp User Switch.

## How do I fix CVE-2023-2546?

No fix has been published for CVE-2023-2546 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2546 being exploited?

There is no known exploitation of CVE-2023-2546 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2546 and fix it if it is affected.

What it is: CVE-2023-2546 is a high-severity authentication bypass vulnerability in iqbalrony WP User Switch, published on 6 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-2546 in the wild and no public exploit code.

Affected product: iqbalrony WP User Switch. 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-2023-2546/ (Markdown: https://insights.sbomify.com/CVE-2023-2546/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2546
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2546
- OSV: https://osv.dev/vulnerability/CVE-2023-2546

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2546/
Summaries are generated and may contain mistakes; the official description above is the record.