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TI-2026-11227 Aliases CVE-2026-13223GHSA-5qw6-59g4-vvqw

Insufficient validation of payment status in pretix-computop

Priority LOW 28CWE-841Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Our payment integration with Computop-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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Fix Fixed pretix-computop (pretix): 1.3.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pretixpretix-computopbefore 1.3.21.3.2Patch availableCNA
  • pretix-computop Vendorpretix Affected before 1.3.2 Fixed in 1.3.2 Patch available CNA

Remediation

  • Fix · CNA pretix-computop (pretix) Fixed in 1.3.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-13223
  2. 2026-10-03 Alias added: GHSA-5qw6-59g4-vvqw

References

  • TI-2024-18268 pretix before 2024.1.1 mishandles file validation. CVSS 3.1CRITICAL 9.8
  • TI-2026-11524 SSRF with API key leak in pretix-oppwa CVSS 4.0CRITICAL 9.0
  • TI-2026-41416 Cross-site scripting in pretix CVSS 4.0HIGH 8.8
  • TI-2026-11523 Session takeover vulnerability CVSS 4.0HIGH 7.7
  • TI-2026-02082 Unsafe variable evaluation in email templates CVSS 4.0HIGH 7.5
  • TI-2026-02081 Unsafe variable evaluation in email templates CVSS 4.0HIGH 7.5
See all 38 →

Sources