---
id: "CVE-2026-118757"
kind: "vulnerability"
aliases: ["CVE-2026-118757"]
title: "PiWeb WooCommerce payment plugin lets anyone alter other customers' orders"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ecommerce", "package", "woocommerce", "wordpress"]
not_affected_if: ["plugin-not-installed", "version-1.1.10.9-or-later"]
published_at: "2026-10-28T22:17:14+00:00"
first_seen_at: "2026-10-28T22:35:34+00:00"
updated_at: "2026-10-28T22:36:54+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118757", "first_seen_at": "2026-10-28T22:35:34+00:00"}]
---

# PiWeb WooCommerce payment plugin lets anyone alter other customers' orders

PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 has a missing authorization check in its update_fees AJAX handler. An unauthenticated attacker can reuse a nonce from their own order page and iterate order_id values to change payment methods, recalculate fees, and read other customers' order line items and totals.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed plugin version in the WordPress admin plugin list or with `wp plugin get <plugin-slug> --field=version` (unknown exact slug from sources)
- Confirm whether the plugin is active under WooCommerce on the site

## Fix

- Update the PiWeb Disable payment method / Partial payment for WooCommerce plugin to `1.1.10.9` or later
- If no update is available, deactivate the plugin until it is patched

## Timeline

- 2026-10-28T22:35:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118757

## From the sources

PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 contains a missing authorization vulnerability in the update_fees AJAX handler that allows unauthenticated attackers to modify and read other customers' orders. Attackers can reuse a nonce from their own order-pay page and supply sequential order_id values to change payment methods, recalculate fees, and disclose order line items and totals.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_