CVE-2026-104642
Deferred Deferred - Pending Action

Simple Shopping Cart Plugin Price Manipulation Vulnerability

Publication date: 2026-10-21

Last updated on: 2026-10-21

Assigner: WPScan

Description
The Simple Shopping Cart WordPress plugin before 5.3.3 does not verify submitted product prices against a value only the site owner can set, allowing users with the Contributor role and above to register attacker-chosen prices for existing products, which any visitor can then use to add those products to the cart at that price.

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Meta Information

Published
2026-10-21
Last Modified
2026-10-21
Generated
2026-11-10
AI Q&A
2026-10-21
EPSS Evaluated
2026-11-09
NVD
CVE-2026-104642
EUVD
EUVD-2026-107144

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Unknown Simple Shopping Cart 5.1.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-345 The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

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Executive Summary

The Simple Shopping Cart WordPress plugin before version 5.3.3 has a flaw where it does not validate product prices submitted by users. This allows anyone with at least the Contributor role to set arbitrary prices for existing products. Visitors can then add these products to their cart at the manipulated price.

Detection Guidance

Check the installed version of the Simple Shopping Cart plugin in WordPress. If it is between 5.1.3 and 5.3.2, the system is vulnerable. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin files directly.

Impact Analysis

If you run a WordPress site using this plugin, attackers could set prices to zero or negative values, leading to financial losses. Customers might exploit this to purchase products at incorrect prices, causing revenue issues or disputes.

Compliance Impact

This vulnerability could lead to unauthorized price changes, potentially causing financial discrepancies. While not directly violating GDPR or HIPAA, it may undermine data integrity and consumer trust, which are key compliance aspects for these regulations.

Mitigation Strategies

Update the Simple Shopping Cart plugin to version 5.3.3 or later immediately. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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