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CVE-2026-18603 - Before 1 Plugin

CVE-2026-18603

The PiWeb Cancel order / Refund request for WooCommerce WordPress plugin before 1.3.4.34 does not have authorization or ownership checks when adding the contents of a previous order to the cart, allowing unauthenticated users to disclose the contents of other customers' orders, as well as to clear and repopulate a logged in user's cart via a crafted link.

CVE-2026-18603

UNKNOWN CVSS 0.0 Published 2026-08-09 Updated 2026-08-09
AI Risk Low (14/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P5 Monitor
Severity Band UNKNOWN
CVSS Vector Unspecified
Affected Components 2
Reference Links 1
AI Risk Engine Low (14/100)
Exploitability High
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-08-09 CVE published and first recorded in the threat feed.
  2. 2026-08-09 Record updated with latest vulnerability metadata.
  3. 2026-08-09 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated just now

AI enriched just now (2026-08-09 19:08 UTC)

Technical Summary

The PiWeb Cancel order / Refund request for WooCommerce WordPress plugin before 1.3.4.34 does not have authorization or ownership checks when adding the contents of a previous order to the cart, allowing unauthenticated users to disclose the contents of other customers' orders, as well as to clear and repopulate a logged in user's cart via a crafted link.

Potential Impact

Severity is UNKNOWN (CVSS 0.0). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential, low-bar exploit prerequisites.

Primary risk drivers: remote code execution potential, low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 14/100 (Low, High) with priority P5 Monitor. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Before 1 PLUGIN · before-1 Affected: < 1.3.4.34 Fixed in: 1.3.4.34
Refund Request For Woocommerce PLUGIN · refund-request-for-woocommerce Affected: < 1.3.4.34 Fixed in: 1.3.4.34
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