CVE-2026-4547Network attack vector

Transaction manipulation via unchecked Stripe price identifier

Published Mar 22, 2026 · Updated Mar 22, 2026

Business logic error in Next SaaS Stripe Starter 1.0.0 allows remote authenticated users to select unintended Stripe prices. The generateUserStripe function in actions/generate-user-stripe.ts accepts a caller-controlled priceId and passes it directly to Stripe's checkout session line_items without checking it against the application's configured plan identifiers. A signed-in user with a valid account can therefore create a checkout session for a supplied price identifier accepted by the connected Stripe account, altering the intended transaction choice; no broader data access or service interruption is reported.

CVSS severity5.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Business logic error in Next SaaS Stripe Starter 1.0.0 allows remote authenticated users to select unintended Stripe prices. The generateUserStripe function in actions/generate-user-stripe.ts accepts a caller-controlled priceId and passes it directly to Stripe's checkout session line_items without checking it against the application's configured plan identifiers. A signed-in user with a valid account can therefore create a checkout session for a supplied price identifier accepted by the connected Stripe account, altering the intended transaction choice; no broader data access or service interruption is reported.

The record

CVE
CVE-2026-4547
Published
Mar 22, 2026
Updated
Mar 22, 2026
Vendor
mickasmt
Product
Next SaaS Stripe Starter
Classifications
CWE-840, T1190, T1565
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 22, 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=1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

mickasmt · Next SaaS Stripe Starterversion=1.0.0

Published CVSS scores

4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-840Business Logic Errors
T1190Exploit Public-Facing Application
T1565Data Manipulation

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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