---
id: CVE-2026-19127
title: >-
  An issue in the billing and license activation subsystem allows remote
  attackers to bypass payment authorization workflows
summary: >-
  An issue in the billing and license activation subsystem allows remote
  attackers to bypass payment authorization workflows. By exploiting
  insufficient cryptographic validation or lack of server-side state
  verification on promotional/life…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-345
published: '2026-08-06'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T15:52:31.783'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19127'
references:
  - url: 'https://gadvisory.org/advisories/PSA-2026-NWZN9J'
    label: 4cdc9741-f887-419a-a2fd-acbbd2729276
  - url: >-
      https://github.com/gitroomhq/postiz-app/commit/387d85dabe0223cd930714c19072a0aee58541ca
    label: 4cdc9741-f887-419a-a2fd-acbbd2729276
  - url: 'https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.10'
    label: 4cdc9741-f887-419a-a2fd-acbbd2729276
tags:
  - nvd
epss: 0.00307
epssPercentile: 0.20992
ingestedAt: '2026-09-09T16:14:05.512Z'
---

## Overview

An issue in the billing and license activation subsystem allows remote attackers to bypass payment authorization workflows. By exploiting insufficient cryptographic validation or lack of server-side state verification on promotional/lifetime-deal (LTD) redemption codes, an unauthenticated attacker can forge valid redemption tokens or replay existing single-use codes to activate permanent, tier-highest paid subscriptions without a financial transaction.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.