PiWeb WooCommerce plugin flaw lets attackers modify customer orders
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 contains a missing authorization vulnerability in the update_fees AJAX handler (CWE-862). An unauthenticated remote attacker can reuse a nonce from their own order-pay page and supply sequential order_id values to modify other customers' orders and read their line items and totals.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| PI Websolution | PiWeb Disable payment method / Partial payment for WooCommerce | before 1.1.10.9 | 1.1.10.9 | Patch available | CNA |
- PiWeb Disable payment method / Partial payment for WooCommerce VendorPI Websolution Affected before 1.1.10.9 Fixed in 1.1.10.9 Patch available CNA
Remediation
Update PiWeb Disable payment method / Partial payment for WooCommerce to version 1.1.10.9 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA PiWeb Disable payment method / Partial payment for WooCommerce (PI Websolution) Fixed in 1.1.10.9
Timeline
- 2026-10-28 Threatist record created from CVE-2026-118757
- 2026-10-29 Alias added: GHSA-cj89-254r-p494
- 2026-10-30 Priority changed: MEDIUM → LOW
- 2026-11-03 CISA SSVC decision points changed
References
More PI Websolution vulnerabilities
- TI-2022-03316 Export customers list CSV for WooCommerce < 2.0.69 - CSV Injection CVSS 3.1CRITICAL 9.8
- TI-2024-08285 Product Enquiry for WooCommerce <= 2.2.33.33 - Authenticated (Author+) PHP Object Injection in enquiry_detail.php CVSS 3.1HIGH 8.8
- TI-2023-16882 WordPress Advanced Flat rate shipping Woocommerce Plugin <= 1.6.4.4 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
- TI-2022-23359 WordPress CSS JS Manager Plugin <= 2.4.49 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
- TI-2026-42475 WordPress Product Enquiry for WooCommerce plugin <= 2.2.34.43 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2023-15857 WordPress Product page shipping calculator for WooCommerce Plugin <= 1.3.25 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-118757 · CVE Program
- CVE-2026-118757 · NVD
- FIRST EPSS
- GHSA-cj89-254r-p494 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences