CVE Catalog

CVE-2026-18029

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.33%

25th percentile - higher than 25% of all known CVEs

Summary

The payment integration with GiroCheckout does not properly validate payment status responses. An attacker can use a successful payment response from one transaction and apply it to another, gaining access to multiple valid tickets with only one payment.

Risk Assessment

The organization may suffer financial losses as an attacker can obtain tickets without paying for them.

Recommendation

Update the payment integration to verify each response for uniqueness and association with a specific transaction.

Related vulnerabilities

Original NVD description (English source)

Our payment integration with GiroCheckout 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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS