# CVE-2025-3743: Upsell Funnel Builder for WooCommerce <= 3.0.0 - Unauthenticated Order Manipulation

> Unauthenticated attackers can manipulate product IDs and discounts in order bumps, allowing arbitrary modification of cart contents and pricing.

- **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:** 25 Apr 2025
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-3hwm-4538-x9g2

## What is CVE-2025-3743?

CVE-2025-3743 is a medium-severity vulnerability in wpswings Upsell Funnel Builder for WooCommerce – Create Upsells, Cross-Sells, Order Bumps, Frequently Bought, and Popups., published on 25 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Upsell Funnel Builder for WooCommerce plugin for WordPress is vulnerable to order manipulation in all versions up to, and including, 3.0.0. This is due to the plugin allowing the additional product ID and discount field to be manipulated prior to processing via the 'add_offer_in_cart' function. This makes it possible for unauthenticated attackers to arbitrarily update the product associated with any order bump, and arbitrarily update the discount applied to any order bump item, when adding it to the cart.

Weakness: CWE-472 (External Control of Assumed-Immutable Web Parameter)

## Which versions are affected by CVE-2025-3743?


## How do I fix CVE-2025-3743?

No fix has been published for CVE-2025-3743 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-3743 being exploited?

There is no known exploitation of CVE-2025-3743 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-3743 and fix it if it is affected.

What it is: CVE-2025-3743 is a medium-severity vulnerability in wpswings Upsell Funnel Builder for WooCommerce – Create Upsells, Cross-Sells, Order Bumps, Frequently Bought, and Popups., published on 25 Apr 2025. 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-2025-3743 in the wild and no public exploit code.

Affected product: wpswings Upsell Funnel Builder for WooCommerce – Create Upsells, Cross-Sells, Order Bumps, Frequently Bought, and Popups.. 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-2025-3743/ (Markdown: https://insights.sbomify.com/CVE-2025-3743/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-3743
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-3743
- OSV: https://osv.dev/vulnerability/CVE-2025-3743

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-3743/
Summaries are generated and may contain mistakes; the official description above is the record.