# CVE-2026-109991: FunnelKit Payment Gateway for Stripe WooCommerce <= 1.15.0.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Exposure via 'order-pay' URL Path Parameter

Status: published. Published: 2026-11-07. Updated: 2026-11-07.

The FunnelKit Payment Gateway for Stripe WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.15.0.2 via the 'order-pay (WP query var from /checkout/order-pay/<ID>/)' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to read the full billing PII — including name, email address, phone number, and complete street address — of any store order by enumerating sequential order IDs, as this data is emitted into the inline fkwcs_data JavaScript object via wp_localize_script on every matching page response. Exploitation occurs even when WooCommerce itself rejects the order-pay page request, because the plugin's wp_localize_script call runs independently of WooCommerce's own order-key validation on the same request.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- teamfunnelkit / FunnelKit Payment Gateway for Stripe WooCommerce: ≥ 0; ≤ 1.15.0.2 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: Wordfence

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/b8d77b41-f535-4e60-a850-881be8dee458?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/funnelkit-stripe-woo-payment-gateway/tags/1.15.0.1/includes/abstract-payment-gateway.php#L364 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/funnelkit-stripe-woo-payment-gateway/tags/1.15.0.1/includes/abstract-payment-gateway.php#L317 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/funnelkit-stripe-woo-payment-gateway/tags/1.15.0.1/includes/abstract-payment-gateway.php#L295 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset?reponame=&old=3741799%40funnelkit-stripe-woo-payment-gateway&new=3741799%40funnelkit-stripe-woo-payment-gateway (CNA: Wordfence)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-109991; retrieved 2026-11-07; source updated 2026-11-07

Revision: 4149f423dcfeedd6da5fa67ecd55a1a18dea52222fc891c809774c5014f1d5b4

Canonical: https://y2.dev/cve/CVE-2026-109991

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.