CVE-2026-107852

Jexactyl is a customisable game management panel and billing system. Prior to 4.0.5, the POST /api/client/billing/stripe/process endpoint accepts a client-supplied Stripe Checkout Session when payment_status is paid but does not compare amount_total or currency with the referenced order and configured billing currency. On an instance where the billing module is enabled and a Stripe secret key is configured, an authenticated client can therefore complete a lower-value or mismatched-currency payment and cause the order to be processed, provisioning, renewing, upgrading, or unsuspending the purchased server for less than the required price. This issue is fixed in version 4.0.5.

• CWE-345

• https://github.com/Jexactyl/Jexactyl/commit/fdee722c560ac13dc2d26271912203a6085dffe3
• https://github.com/Jexactyl/Jexactyl/releases/tag/v4.0.5
• https://github.com/Jexactyl/Jexactyl/security/advisories/GHSA-rf56-676w-hj4g

Published

Oct 9, 2026

Last Modified

Oct 9, 2026

Status

Received

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