# CVE-2026-103327: CryptoCloud - Crypto Payment Gateway 3.0.0 - 3.0.1 - Unauthenticated Arbitrary Order Payment Forgery via Empty-Default Webhook Secret

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

The CryptoCloud WordPress plugin from 3.0.0 through 3.0.1 does not verify the authenticity of the payment notifications received by its gateway callback, as the integrity check is skipped while the webhook secret is left at its empty default, allowing unauthenticated attackers to mark arbitrary orders as paid or failed without any payment being made.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Unknown / CryptoCloud: ≥ 3.0.0; ≤ 3.0.1 (affected, semver). Source: CNA: WPScan

## Severity and prioritization

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

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-345

## Exploit evidence

- exploit: https://wpscan.com/vulnerability/fd5563ed-85c6-4b17-acf6-bdc2cd77dd4b/ (CNA: WPScan)

## References

- https://wpscan.com/vulnerability/fd5563ed-85c6-4b17-acf6-bdc2cd77dd4b/ (CNA: WPScan; exploit, vdb-entry, technical-description)

## Provenance

- CNA: WPScan: https://www.cve.org/CVERecord?id=CVE-2026-103327; retrieved 2026-11-03; source updated 2026-11-03

Revision: ce243e754f95c01242fc1318611a59da982c460c3759900f31230b07f4417dc0

Canonical: https://y2.dev/cve/CVE-2026-103327

## 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.