CVE-2026-13602
We found a chain of combining multiple weaknesses in the product that could allow an attacker to become any user in the backend and access any data: * The payment integration plugins S…
Overview
CVE-2026-13602 is a known-severity vulnerability. It was published on July 1, 2026.
Technical description
We found a chain of combining multiple weaknesses in the product that could allow an attacker to become any user in the backend and access any data:
*
The payment integration plugins Stripe (included in the core system), pretix-mollie, pretix-oppwa, pretix-bitpay, pretix-payone, pretix-secuconnect, pretix-sofort, and pretix-saferpay
contain a code path that is intended for the transport of session
parameters from a tab with isolated cookies (e.g. in the pretix widget)
to a new tab. For this purpose, a set of session parameters is
cryptographically signed and then passed to the new tab as a URL
parameter. The plugins perform no further validation of the session
parameters, other than the cryptographic signature being valid. This is
fixed with the releases issued today by strictly validating that no
session parameters outside of the scope of the respective plugin may be
set.
*
An unrelated feature in the core system is used to generate redirect links that
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
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Frequently asked questions
What is CVE-2026-13602?
CVE-2026-13602 is a known-severity vulnerability. It was published on July 1, 2026.
How severe is CVE-2026-13602?
CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.
How do I fix or remediate CVE-2026-13602?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-13602?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-13602 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.