CVE-2026-97275

BuildKit – Product Builder for WooCommerce – Custom PC Builder <= 1.0.28 - Unauthenticated Cart Data Manipulation

2026-10-03 00:00

Strategic Overview

Status: Patched in 1.0.29
Affected Plugin: BuildKit – Product Builder for WooCommerce – Custom PC Builder
Affected Version: <= 1.0.28
CVSS: 5.3Medium
Weakness type: CWE-602 · Client-Side Enforcement of Server-Side Security
CVE: CVE-2026-97275

View all BuildKit – Product Builder for WooCommerce – Custom PC Builder vulnerabilities

At a glance

CVE-2026-97275 is a medium-severity Client-Side Enforcement of Server-Side Security vulnerability in the BuildKit WordPress plugin, affecting versions <= 1.0.28. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.0.29; sites on affected versions should update now. Disclosed October 2026, reported by dcs.

Vulnerability Overview

The BuildKit – Product Builder for WooCommerce – Custom PC Builder plugin for WordPress is vulnerable to Bypass Vulnerability in all versions up to, and including, 1.0.28. This is due to improper validation of quantity values supplied in user-controlled input. This makes it possible for unauthenticated attackers to manipulate input data, such as product quantities or pricing, when building a custom product configuration. WooCommerce must be active along with the BuildKit plugin.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-602: Client-Side Enforcement of Server-Side Security

The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server.

Remediation

Update to version 1.0.29, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: BuildKit 1.0.29 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-97275 https://www.wordfence.com/threat-intel/vulnerabilities/id/f7f0b443-9d7e-4951-95ea-beecf96c83c8 https://nvd.nist.gov/vuln/detail/CVE-2026-97275

Related records

Other vulnerabilities in BuildKit – Product Builder for WooCommerce – Custom PC Builder

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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