Description
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.
Published: 2026-10-23
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 23 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Unauthenticated payment reuse allows unpaid orders to be marked as paid
First Time appeared Craftcms
Craftcms commerce-mollie
Weaknesses CWE-345
CPEs cpe:2.3:a:craftcms:commerce-mollie:*:*:*:*:*:*:*:*
Vendors & Products Craftcms
Craftcms commerce-mollie
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Subscriptions

Craftcms Commerce-mollie
cve-icon MITRE

Status: PUBLISHED

Assigner: Hackrate

Published:

Updated: 2026-10-23T21:50:13.188Z

Reserved: 2026-10-23T21:25:09.997Z

Link: CVE-2026-115937

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-23T22:16:59.453

Modified: 2026-10-23T22:16:59.453

Link: CVE-2026-115937

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-345

    Insufficient Verification of Data Authenticity