Vulnerability Details CVE-2025-3889
The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.3 via the 'process_payment_data' due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to change the quantity of a product to a negative number, which subtracts the product cost from the total order cost. The attack will only work with Manual Checkout mode, as PayPal and Stripe will not process payments for a negative quantity.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.7%
CVSS Severity
CVSS v3 Score 5.3
References
- https://plugins.trac.wordpress.org/browser/wordpress-simple-paypal-shopping-cart/tags/5.1.2/wp_shopping_cart.php#L324
- https://plugins.trac.wordpress.org/changeset/3284572/
- https://www.tipsandtricks-hq.com/ecommerce/simple-shopping-cart-enabling-manual-offline-checkout
- https://www.tipsandtricks-hq.com/ecommerce/wp-shopping-cart
- https://www.wordfence.com/threat-intel/vulnerabilities/id/41212533-535e-4a9e-a9b8-1240021a3752?source=cve
Products affected by CVE-2025-3889
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.2.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:1.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:2.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.2.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.2.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.2.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.3.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.3.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.3.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.8.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:3.9.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.0.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.1.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.2.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.3.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.4.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.2
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.3
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.4
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.5
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.6
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.7
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.8
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.5.9
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.6.0
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.6.1
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cpe:2.3:a:tipsandtricks-hq:wordpress_simple_paypal_shopping_cart:4.6.2