CVE-2026-13223Network attack vector

Ticket payment bypass via replayed status response

Published Jun 25, 2026 · Updated Jun 25, 2026

Payment workflow bypass in pretix GmbH pretix-computop before 1.3.2 allows remote attackers to obtain multiple valid tickets for one payment. Payment-status processing accepts a response issued for one payment when it is supplied for a different payment, rather than correlating it with the payment being completed. The attacker must first obtain a legitimate successful response and replay it for another payment; the bounded result is extra valid tickets without extra payment.

CVSS severity6.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Payment workflow bypass in pretix GmbH pretix-computop before 1.3.2 allows remote attackers to obtain multiple valid tickets for one payment. Payment-status processing accepts a response issued for one payment when it is supplied for a different payment, rather than correlating it with the payment being completed. The attacker must first obtain a legitimate successful response and replay it for another payment; the bounded result is extra valid tickets without extra payment.

The record

CVE
CVE-2026-13223
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
pretix GmbH
Product
pretix-computop
Classifications
CWE-841, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

pretix GmbH · pretix-computopversion=0 <1.3.2

Published CVSS scores

6.3rami.ioCVSS: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 describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-841Improper Enforcement of Behavioral Workflow
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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