CVE-2026-13222: Pretix Pretix-Oppwa

Medium severity, CVSS 6.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Our payment integration with Oppwa-based payment methods 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.

Affected products

• Pretix Pretix-Oppwa: before 1.4.3 (fixed in 1.4.3)

Published 2026-06-25. Last modified 2026-06-25.