# CVE-2026-123122: Checkout Files Upload for WooCommerce 2.4.0 - Unauthenticated Stored XSS via Uploaded File

Status: published. Published: 2026-11-14. Updated: 2026-11-14.

The Checkout Files Upload for WooCommerce WordPress plugin before 2.4.1 does not verify that a file uploaded at checkout is really one of its allowed image types, and serves stored uploads inline using their detected content type, allowing unauthenticated users to upload an HTML file disguised as an image that executes JavaScript in the browser of a shop manager or administrator who opens it from the order screen.
This is a regression of CVE-2025-4212, reintroduced in 2.4.0.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Unknown / Checkout Files Upload for WooCommerce: ≥ 2.4.0; < 2.4.1 (affected, semver). Source: CNA: WPScan

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

- exploit: https://wpscan.com/vulnerability/b9bd26b4-5334-4d40-9854-bfbf146f8fa8/ (CNA: WPScan)

## References

- https://wpscan.com/vulnerability/b9bd26b4-5334-4d40-9854-bfbf146f8fa8/ (CNA: WPScan; exploit, vdb-entry, technical-description)

## Provenance

- CNA: WPScan: https://www.cve.org/CVERecord?id=CVE-2026-123122; retrieved 2026-11-14; source updated 2026-11-14

Revision: 4ab80d58a8390d3435a80b3fb0fb93fbbfe69b6b96de254a34e1a7af14b74716

Canonical: https://y2.dev/cve/CVE-2026-123122

## 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.