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CVE PROGRAM SOURCE RECORD7.7 High

CVE-2026-48799

Postiz: Unauthenticated arbitrary lifetime PRO grant via Nowpayments webhook

Description

Postiz is an AI social media scheduling tool. Prior to 2.21.8, Postiz fails to verify Nowpayments IPN callback authenticity against the payment provider shared secret and reads the target subscription identifier from the untrusted request body, allowing a low-privileged account to grant arbitrary organizations lifetime PRO subscriptions without payment. This issue is fixed in version 2.21.8.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

gitroomhq postiz-app

  • < 2.21.8affected

References