Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Unknown PiWeb Cancel order / Refund request for WooCommerce — Cancel Order & Request Woocommerce < 1.3.4.34 - Unauthenticated Order Content Disclosure via Reorder AJAX Actions
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U L L N 6.5 .0022 13.0 —
AFFECTED
Product Versions Fixed
PiWeb Cancel order / Refund request for WooCommerce unspecified —
TIMELINE
Aug 3 Reserved by WPScan
Aug 9 Published (CNA: WPScan)
Aug 10 EXPLOIT PUBLISHED — CVE-2026-18603 (Unknown PiWeb Cancel order / Refund request for WooCommerce). Public exploit reference added.
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 3, 2026 | Reserved | Reserved by WPScan |
| August 9, 2026 | Published | Published (CNA: WPScan) |
| August 10, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-18603 (Unknown PiWeb Cancel order / Refund request for WooCommerce). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | PiWeb Cancel order / Refund request for WooCommerce | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-18603 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.