Unauthenticated price bypass via incomplete cart validation
Published Aug 22, 2026 · Updated Aug 22, 2026
Improper input validation in Advanced Product Fields 1.6.21 and earlier allows remote attackers to bypass required paid add-on charges. The validate_cart_data function accepts crafted add-to-cart POST data without enforcing required priced fields, so WooCommerce calculates only the base product price. No account is required; a configured product with a required paid add-on can be purchased for less than its intended total.
Summary
What happened
Improper input validation in Advanced Product Fields 1.6.21 and earlier allows remote attackers to bypass required paid add-on charges. The validate_cart_data function accepts crafted add-to-cart POST data without enforcing required priced fields, so WooCommerce calculates only the base product price. No account is required; a configured product with a required paid add-on can be purchased for less than its intended total.
The record
- CVE
- CVE-2026-2996
- Published
- Aug 22, 2026
- Updated
- Aug 22, 2026
- Vendor
- Wombat Plugins
- Product
- Advanced Product Fields (Product Addons) for WooCommerce
- Classifications
- CWE-20
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 22, 2026CVE publishedPublication date reported by the CVE source.
- Aug 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=1.6.21
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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