CVE-2026-19127: Insufficient verification of lifetime-deal redemption codes allows forgery of permanent paid subscriptions
Vulnerability summary
CVE-2026-19127 is a medium (CVSS 6.5) vulnerability in gitroomhq postiz-app. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.3% of scored vulnerabilities.
Timeline
- 06-08-2026PublishedVulnerability first disclosed.
- 07-08-2026Last modifiedVulnerability information updated.
Description
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 metrics
2 scores · 2 sources · 1 version- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.29% on 23-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Gitroomhq1 product
- postiz-app< 2.21.10
1 vendor · 1 product
References
3 links- gadvisory.org/advisories/PSA-2026-NWZN9JVendor Advisory