CVE-2026-104641mediumCWE-345

CVE-2026-104641: medium-severity vulnerability in Simple Shopping Cart

Simple Shopping Cart < 5.3.3 - Unauthenticated Payment Bypass via Unverified PayPal IPN Recipient

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 5.3epss 0.1%
The Simple Shopping Cart WordPress plugin before 5.3.3 does not verify that a PayPal payment notification is for a payment received by the site owner's PayPal account in its default configuration, allowing unauthenticated attackers to have their orders marked as paid using a payment made to an account they control.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Unknown · Simple Shopping Cart
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Simple Shopping Cart

In the same product, most dangerous first.

CVE-2026-104119LOWSimple Shopping Cart < 5.2.6 - Admin+ Stored XSS via PayPal API CredentialsEPSS 0.1%CVE-2026-104642LOWSimple Shopping Cart 5.1.3 - 5.3.2 - Contributor+ Price Manipulation via Price Verification BypassEPSS 0.1%