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.
* 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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
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
|
Projects
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Status: PUBLISHED
Assigner: Hackrate
Published:
Updated: 2026-10-23T21:50:13.188Z
Reserved: 2026-10-23T21:25:09.997Z
Link: CVE-2026-115937
No data.
Status : Received
Published: 2026-10-23T22:16:59.453
Modified: 2026-10-23T22:16:59.453
Link: CVE-2026-115937
No data.
OpenCVE Enrichment
Updated: 2026-10-23T23:30:17Z
Weaknesses