# CVE-2026-13223: pretix pretix-computop improper payment status validation

Source: https://junglewise.ai/threats/cve-2026-13223-pretix-pretix-computop-improper-payment-status-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-25. Updated: 2026-06-25  
License: CC BY 4.0 with a link back

CVE-2026-13223 · Severity: info · CVSS 6.3 · Published 2026-06-25

A vulnerability in the Computop payment plugin for the pretix ticketing system allows users to bypass payment requirements. By reusing a valid payment confirmation from one transaction for a different order, an attacker could obtain multiple tickets while only paying for one. This could lead to financial loss for event organizers and unauthorized access to events.

Vendors: [Pretix](https://junglewise.ai/threats/vendors/pretix).

## Quick answers

**Is CVE-2026-13223 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-13223 being exploited in the wild.

**How severe is CVE-2026-13223?** Informational severity, with a CVSS score of 6.3, published 25 June 2026.

**Which products and versions are affected?** Pretix-Computop < 1.3.2.

**Is there a fix for CVE-2026-13223?** A patch was published on 2026-06-25: Fixed in version 1.3.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-13223 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-13223?** Check whether you run Pretix-Computop at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is classified as an improper enforcement of behavioral workflow (CWE-841) within the pretix-computop payment integration. The root cause is a failure to uniquely bind a payment status response from the Computop gateway to a specific transaction. An attacker can intercept or obtain a successful payment status response and replay it to the system for a different order. This allows for the generation of valid tickets without corresponding payments. The issue is fixed in version 1.3.2 of the pretix-computop plugin.

## Affected products

- pretix pretix-computop < 1.3.2

## Timeline

- 2026-06-25: disclosed
- 2026-06-25: patched: Fixed in version 1.3.2

## References

- [https://pypi.python.org/](https://pypi.python.org/)
- [https://pretix.eu/about/en/blog/20260625-release-2026-5-2/](https://pretix.eu/about/en/blog/20260625-release-2026-5-2/)