Insufficient validation of payment status in pretix-girosolution
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 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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Fix Fixed pretix-girosolution (pretix GmbH): 1.0.1
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
Remediation
- Fix · CNA pretix-girosolution (pretix GmbH) Fixed in 1.0.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18029
- 2026-10-03 Alias added: GHSA-f83j-v8r3-vfhv
References
More pretix vulnerabilities
- 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
Sources
- CVE-2026-18029 · CVE Program
- CVE-2026-18029 · NVD
- FIRST EPSS
- GHSA-f83j-v8r3-vfhv · GitHub Advisory Database · CC BY 4.0
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