CVE-2026-13222
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedOur payment integration with Oppwa-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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Oppwa payment integration lacks proper validation to ensure payment status responses are tied to the specific transaction being processed. An attacker can capture a successful payment response from one transaction and replay it to validate different payments, allowing multiple tickets to be obtained with only a single payment.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- High
- Privileges
- None
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Oppwa payment integration in useSearch codebase for references to 'oppwa', 'payment', 'callback', 'response' handlers, and any integration code connecting to Oppwa payment gateway APIsAffected if Oppwa payment integration code exists in the environment
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Verify transaction binding in payment response handlingInspect the payment response validation code - look for checks that verify the response contains and validates a transaction ID or order ID that matches the request being processedAffected if Payment responses are processed without validating that the transaction ID in the response matches the original request
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Check for response integrity validationExamine whether payment responses are validated for authenticity - look for signature verification, HMAC validation, or cryptographic checks on incoming payment status responsesAffected if Payment status responses are accepted without cryptographic integrity checks or signature verification
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Inspect for replay attack preventionLook for mechanisms that prevent response reuse - such as unique nonces, timestamps, one-time-use tokens, or server-side tracking of already-processed transaction IDsAffected if No mechanism exists to detect or prevent replay of previously captured payment responses
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Audit payment completion logicReview the code that grants access after payment (e.g., ticket generation, download enablement) - check if it relies solely on a 'success' status without verifying transaction-specific bindingAffected if Access or tickets are granted based purely on a successful payment status without linking to the specific transaction initiated
A defender is affected if their Oppwa integration accepts payment responses without validating that each response is cryptographically bound to and matches the specific transaction being processed, enabling replay of successful payment responses.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement cryptographic binding between payment responses and specific payment transactions, using transaction identifiers and validating response integrity to prevent replay attacks.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,464.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-13222 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-13222 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data