Vulnerability · Published Oct 23, 2026 · Assigned by Hackrate

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

High 7.5

In plain English

A high-severity insufficient verification of data authenticity in commerce-mollie from craftcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.2%top 94.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
craftcms	commerce-mollie	2.1.1 – before 4.4.3

Weakness: CWE-345 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

https://www.hckrt.com/hacktivity/HCKRT-6RB2BC third-party-advisory, technical-description, mitigation
https://github.com/craftcms/commerce-mollie/releases/tag/4.4.3 release-notes
https://github.com/craftcms/commerce-mollie product
https://github.com/craftcms/commerce-mollie/security/advisories/GHSA-3qcx-mjf6-48vj third-party-advisory