Vulnerability in Wpswings Upsell Funnel Builder For Woocommerce – Create Upsells, Cross-Sells, Order Bumps, Frequently Bought, And Popups.

CVE-2025-3743

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-3743: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

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., classified under CWE-472. CVSS score: 5.3/10. Published 2025-04-25.
How severe is CVE-2025-3743?
Medium severity. CVSS v3 base score is 5.3 out of 10.