CVE-2026-19127
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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/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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| GitroomHQ | postiz-app | 0 < 2.21.10 | affected |
Weaknesses
- CWE-345: CWE-345
Workarounds
No workaround other than upgrading to v2.21.10 is currently known.
References
- https://github.com/gitroomhq/postiz-app/commit/387d85dabe0223cd930714c19072a0aee58541ca
- https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.10
- https://gadvisory.org/advisories/PSA-2026-NWZN9J
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