CVE-2025-3743

MEDIUM
Published Apr 25, 2025 Modified Apr 15, 2026 CWE-472

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.

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CVSS v3.1 Score

5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-472 CWE-472

References

Other References

https://plugins.trac.wordpress.org/browser/upsell-order-bump-offer-for-woocommerce/tags/3.0.0/public/class-upsell-order-bump-offer-for-woocommerce-public.php#L1771 https://plugins.trac.wordpress.org/browser/upsell-order-bump-offer-for-woocommerce/tags/3.0.0/public/class-upsell-order-bump-offer-for-woocommerce-public.php#L1773 https://plugins.trac.wordpress.org/browser/upsell-order-bump-offer-for-woocommerce/tags/3.0.0/public/class-upsell-order-bump-offer-for-woocommerce-public.php#L1818 https://plugins.trac.wordpress.org/browser/upsell-order-bump-offer-for-woocommerce/tags/3.0.0/public/class-upsell-order-bump-offer-for-woocommerce-public.php#L1829 https://plugins.trac.wordpress.org/changeset/3279944/ https://www.wordfence.com/threat-intel/vulnerabilities/id/b0e1546b-c8cc-4d57-9909-153209e3a9c6?source=cve

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2025-3743? +
CVE-2025-3743 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
How do I check if I'm vulnerable to CVE-2025-3743? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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