# CVE-2026-84908: Missing authorization in WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell

> Unauthenticated attackers can manipulate product prices in WPFunnels by adding arbitrary items to carts at discounted rates, causing revenue loss.

- **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 Sep 2026
- **Updated:** 9 Sep 2026
- **Also known as:** GHSA-cr4w-84pm-5qc4

## What is CVE-2026-84908?

CVE-2026-84908 is a medium-severity missing authorization vulnerability in getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The WPFunnels plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.12.13. This is due to the plugin registering the 'wpfnl_load_payment' AJAX action for both authenticated and unauthenticated (wp_ajax_nopriv_) users and the underlying add_offer_product_to_cart() function performing no nonce verification, no capability check, and no validation that the attacker-supplied product_id is the offer product actually configured on the attacker-supplied step_id. This makes it possible for unauthenticated attackers to add arbitrary WooCommerce products to a cart at any discounted price configured on any funnel step, enabling price manipulation and revenue loss at checkout.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-84908?


## How do I fix CVE-2026-84908?

No fix has been published for CVE-2026-84908 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-84908 being exploited?

There is no known exploitation of CVE-2026-84908 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84908 and fix it if it is affected.

What it is: CVE-2026-84908 is a medium-severity missing authorization vulnerability in getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell, published on 9 Sep 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-2026-84908 in the wild and no public exploit code.

Affected product: getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell. 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-2026-84908/ (Markdown: https://insights.sbomify.com/CVE-2026-84908/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84908
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84908
- OSV: https://osv.dev/vulnerability/CVE-2026-84908

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84908/
Summaries are generated and may contain mistakes; the official description above is the record.