High · CVSS 8.7CVE-2026-115937

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

Answer in brief

CVE-2026-115937 records a High severity (CVSS 8.7) vulnerability in Unauthenticated payment reuse allows unpaid orders to be marked as paid. The current sources do not mark it as known exploited. The current feed maps craftcms/craftcms/commerce-mollie (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 23, 2026Updated Oct 23, 2026Source checked Oct 23, 2026First seen by HOL Oct 23, 2026Material review Oct 23, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps craftcms/craftcms/commerce-mollie (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
craftcms/craftcms/commerce-molliegeneric	>=2.1.1 <4.4.3	4.4.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for craftcms/craftcms/commerce-mollie.
Review the reported fix. Update craftcms/craftcms/commerce-mollie to 4.4.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 23, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.