# CVE-2026-115937: Unauthenticated payment reuse allows unpaid orders to be marked as paid

Status: published. Published: 2026-10-23. Updated: 2026-11-02.

The Mollie webhook endpoint accepts two independent, attacker-controlled parameters and never verifies that they belong together:

  *  commerceTransactionHash — selects which Craft Commerce transaction is completed
  *  id — selects which Mollie payment is queried for its status




An unauthenticated attacker holding any paid Mollie payment ID from the merchant’s account can pair it with any transaction hash.



Commerce queries Mollie, sees status: paid, and marks the target transaction successful for that transaction’s full
amount, regardless of how much was actually paid.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- craftcms / commerce-mollie (craftcms/commerce-mollie): ≥ 2.1.1; < 4.4.3 (affected, semver). Source: CNA: Hackrate

## Severity and prioritization

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N; source: CNA: Hackrate

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

- CISA KEV: No listing in collected sources

- EPSS: 0.17% as of 2026-11-02; percentile 5.86%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-345

## Exploit evidence

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

## References

- https://www.hckrt.com/hacktivity/HCKRT-6RB2BC (CNA: Hackrate; third-party-advisory, technical-description, mitigation)

- https://github.com/craftcms/commerce-mollie/releases/tag/4.4.3 (CNA: Hackrate; release-notes)

- https://github.com/craftcms/commerce-mollie (CNA: Hackrate; product)

- https://github.com/craftcms/commerce-mollie/security/advisories/GHSA-3qcx-mjf6-48vj (CNA: Hackrate; third-party-advisory)

## Provenance

- CNA: Hackrate: https://www.cve.org/CVERecord?id=CVE-2026-115937; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-115937; retrieved 2026-11-02; source updated Not reported

Revision: c22d1fa29e6e8a6083485969890ff45ee45627e3acede213a22cc58cb304baff

Canonical: https://y2.dev/cve/CVE-2026-115937

## 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 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.