# CVE-2026-93370: Paystack WooCommerce Payment Gateway <= 5.8.5 - Unauthenticated Sensitive Information Exposure in 'key' Parameter on order-pay Endpoint

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

The Paystack WooCommerce Payment Gateway plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.8.5 via the 'key' parameter. This makes it possible for unauthenticated attackers to extract customer PII — including billing name, email address, phone number, billing address, shipping address, and purchased product list — embedded into page HTML via wp_localize_script by enumerating sequential order IDs. This is only exploitable when the merchant has enabled the optional custom metadata feature in the Paystack gateway settings.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- paystack / Paystack WooCommerce Payment Gateway: ≥ 0; ≤ 5.8.5 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: CNA: Wordfence

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-200

## Exploit evidence

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/51dd2908-d639-437d-b1e3-d463cc813240?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L864 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L763 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L708 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/woo-paystack/tags/5.8.5/includes/class-wc-gateway-paystack.php#L253 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset?reponame=&old=3776685%40woo-paystack&new=3776685%40woo-paystack (CNA: Wordfence)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-93370; retrieved 2026-11-07; source updated 2026-11-07

Revision: 5bb7914ac75afa9dc83661e03b4db67e77bd5f90fe860538e9b4269ca11ed4df

Canonical: https://y2.dev/cve/CVE-2026-93370

## 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.