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 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-345

Published

2026-08-06

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• 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

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