# CVE-2026-12270: Everest Forms < 3.5.0 - Unauthenticated Missing Authorization via Site Assistant REST Endpoints

> Unauthenticated attackers can bypass authorization checks on REST endpoints to read onboarding status, modify plugin options, and trigger emails.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-v4gv-5wcc-cjvx

## What is CVE-2026-12270?

CVE-2026-12270 is a medium-severity missing authorization vulnerability in Unknown Everest Forms, 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 Everest Forms  WordPress plugin before 3.5.0 does not correctly restrict access to several REST API endpoints belonging to its onboarding assistant: the capability check is only applied when an attacker-controllable request header holds a specific value, so it can be bypassed by omitting or changing that header. This makes it possible for unauthenticated attackers to read onboarding status information, modify the related Everest Forms  WordPress plugin before 3.5.0 options, and trigger an email from the site to an arbitrary address.

## Which versions are affected by CVE-2026-12270?


## How do I fix CVE-2026-12270?

No fix has been published for CVE-2026-12270 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-12270 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12270 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-12270 and fix it if it is affected.

What it is: CVE-2026-12270 is a medium-severity missing authorization vulnerability in Unknown Everest Forms, published on 9 Jul 2026. 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-2026-12270 exists.

Affected product: Unknown Everest Forms. 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-2026-12270/ (Markdown: https://insights.sbomify.com/CVE-2026-12270/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-12270
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-12270
- OSV: https://osv.dev/vulnerability/CVE-2026-12270

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-12270/
Summaries are generated and may contain mistakes; the official description above is the record.