CVE-2026-57536 PUBLISHED

Insufficient validation of payment status in pretix-mollie

Assigner: rami.io
Reserved: 24.06.2026 Published: 25.06.2026 Updated: 25.06.2026

Our payment integration with Mollie did not properly validate payment status responses. An attacker could use a successful payment status response from one payment and supply it to the system for a different payment, gaining access to multiple valid tickets with only one payment.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
CVSS Score: 6.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	Low	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	pretix
Product	pretix-mollie
Versions	Default: unaffected affected from 0 to 2.5.6 (excl.)

References

https://pretix.eu/about/en/blog/20260625-release-2026-5-2/

Problem Types

CWE-841 Improper enforcement of behavioral workflow CWE

Impacts

CAPEC-21 Exploitation of Trusted Identifiers