# CVE-2026-3477: PZ Frontend Manager <= 1.0.6 - Missing Authorization to Arbitrary User Deletion via 'dataType' Parameter

> Authenticated attackers can delete arbitrary WordPress users, including administrators, due to missing authorization checks in the PZ Frontend Manager plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:** 8 Apr 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-qm3x-rf89-9v8m

## What is CVE-2026-3477?

CVE-2026-3477 is a medium-severity missing authorization vulnerability in projectzealous01 PZ Frontend Manager, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The PZ Frontend Manager plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.0.6. The pzfm_user_request_action_callback() function, registered via the wp_ajax_pzfm_user_request_action action hook, lacks both capability checks and nonce verification. This function handles user activation, deactivation, and deletion operations. When the 'dataType' parameter is set to 'delete', the function calls wp_delete_user() on all provided user IDs without verifying that the current user has the appropriate permissions. Notably, the similar pzfm_remove_item_callback() function does check pzfm_can_delete_user() before performing deletions, indicating this was an oversight. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary WordPress users (including administrators) by sending a crafted request to the AJAX endpoint.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-3477?


## How do I fix CVE-2026-3477?

No fix has been published for CVE-2026-3477 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3477 being exploited?

There is no known exploitation of CVE-2026-3477 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3477 and fix it if it is affected.

What it is: CVE-2026-3477 is a medium-severity missing authorization vulnerability in projectzealous01 PZ Frontend Manager, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-3477 in the wild and no public exploit code.

Affected product: projectzealous01 PZ Frontend Manager. 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-2026-3477/ (Markdown: https://insights.sbomify.com/CVE-2026-3477/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3477
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3477
- OSV: https://osv.dev/vulnerability/CVE-2026-3477

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3477/
Summaries are generated and may contain mistakes; the official description above is the record.