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CVE-2026-118757— PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 Missing Authorization via update_fees

Quick assessment

Affected
PI Websolution PiWeb Disable payment method / Partial payment for WooCommerce
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PiWeb Disable payment method / Partial payment for WooCommerce 插件在 1.1.10.9 版本之前存在一个授权缺失漏洞，位于 AJAX 处理程序中。该漏洞允许未认证的攻击者修改和读取其他客户的订单。攻击者可复用其自身订单支付页面的 nonce（一次性令牌），并提供连续的订单 ID（order_id）值，从而更改支付方式、重新计算费用，并泄露订单明细及总金额。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-118757

Vulnerability Information
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Vulnerability Title
PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 Missing Authorization via update_fees
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
PI Websolution PiWeb Disable payment method / Partial payment for WooCommerce 0 ~ 1.1.10.9 -

II. Public POCs for CVE-2026-118757

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III. Intelligence Information for CVE-2026-118757

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Other References for CVE-2026-118757 (4)

IV. Related Vulnerabilities

Same vendor: PI Websolution
Same weakness: CWE-862