# CVE-2026-12418: Missing authorization in User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration

> Unauthenticated attackers can modify arbitrary posts, including admin content, via insecure direct object reference in the User Frontend 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:** 9 Jul 2026
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-33x8-pcvj-97hp

## What is CVE-2026-12418?

CVE-2026-12418 is a medium-severity missing authorization vulnerability in wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.7 via the 'wpuf_files_data' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to overwrite the post_title, post_content, and post_excerpt of any arbitrary post on the site, including posts authored by administrators. Exploitation requires access to any WPUF post submission form; this is achievable by users with no WordPress role, as the wpuf_submit_post AJAX action is gated only by a nonce with no capability check for the downstream post-edit operation.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-12418?


## How do I fix CVE-2026-12418?

No fix has been published for CVE-2026-12418 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-12418 being exploited?

There is no known exploitation of CVE-2026-12418 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-12418 and fix it if it is affected.

What it is: CVE-2026-12418 is a medium-severity missing authorization vulnerability in wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration, published on 9 Jul 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-2026-12418 in the wild and no public exploit code.

Affected product: wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile Builder, Membership & User Registration. 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-2026-12418/ (Markdown: https://insights.sbomify.com/CVE-2026-12418/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-12418
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-12418
- OSV: https://osv.dev/vulnerability/CVE-2026-12418

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-12418/
Summaries are generated and may contain mistakes; the official description above is the record.