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PiWeb WooCommerce plugin flaw lets attackers modify customer orders

Priority LOW 36CWE-862Published · Updated

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

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00231 14th percentileScored 2026-11-07
Fix Fixed PiWeb Disable payment method / Partial payment for WooCommerce (PI Websolution): 1.1.10.9

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

VendorProductAffected versionsFixed inStatusSource
PI WebsolutionPiWeb Disable payment method / Partial payment for WooCommercebefore 1.1.10.91.1.10.9Patch availableCNA
  • 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

  1. 2026-10-28 Threatist record created from CVE-2026-118757
  2. 2026-10-29 Alias added: GHSA-cj89-254r-p494
  3. 2026-10-30 Priority changed: MEDIUM → LOW
  4. 2026-11-03 CISA SSVC decision points changed

References

  • 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
See all 12 →

Sources