CVE-2026-19127

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gadvisory.org/advisories/PSA-2026-NWZN9J
https://github.com/gitroomhq/postiz-app/commit/387d85dabe0223cd930714c19072a0aee58541ca
https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.10

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-06 22:16

Updated : 2026-09-09 15:52

NVD link : CVE-2026-19127

Mitre link : CVE-2026-19127

CVE.ORG link : CVE-2026-19127

JSON object : View

Products Affected

No product.

CWE

CWE-345

Insufficient Verification of Data Authenticity

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