{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-19127", "assignerOrgId": "4cdc9741-f887-419a-a2fd-acbbd2729276", "state": "PUBLISHED", "assignerShortName": "postiz", "dateReserved": "2026-08-06T15:49:22.192Z", "datePublished": "2026-08-06T17:02:44.054Z", "dateUpdated": "2026-08-06T17:02:44.054Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4cdc9741-f887-419a-a2fd-acbbd2729276", "shortName": "postiz", "dateUpdated": "2026-08-06T17:02:44.054Z"}, "title": "Insufficient verification of lifetime-deal redemption codes allows forgery of permanent paid subscriptions", "descriptions": [{"lang": "en", "value": "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": [{"vendor": "GitroomHQ", "product": "postiz-app", "packageName": "postiz-app", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "2.21.10"}]}], "references": [{"url": "https://github.com/gitroomhq/postiz-app/commit/387d85dabe0223cd930714c19072a0aee58541ca", "tags": ["related"], "name": "387d85d"}, {"url": "https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.10", "tags": ["related"], "name": "v2.21.10"}, {"url": "https://gadvisory.org/advisories/PSA-2026-NWZN9J", "tags": ["related"], "name": "GAdvisory"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-345", "cweId": "CWE-345", "type": "CWE"}]}], "credits": [{"lang": "en", "value": "Enno Gelhaus", "type": "reporter"}, {"lang": "en", "value": "Enno Gelhaus", "type": "coordinator"}, {"lang": "en", "value": "Nevo David", "type": "remediation developer"}], "datePublic": "2026-06-22T13:46:51.287Z", "dateAssigned": "2026-08-06T16:04:00.000Z", "workarounds": [{"lang": "en", "value": "No workaround other than upgrading to v2.21.10 is currently known."}], "solutions": [{"lang": "en", "value": "No solution other than upgrading to v2.21.10 is currently known."}], "configurations": [{"lang": "en", "value": "Stripe has to be configured for this to apply."}], "timeline": [{"time": "2026-06-21T18:00:00.000Z", "lang": "en", "value": "Postiz has discovered the vulnerability."}, {"time": "2026-06-22T13:20:00.000Z", "lang": "en", "value": "Postiz has developed and verified the fix."}, {"time": "2026-06-22T13:44:00.000Z", "lang": "en", "value": "Postiz has created the release and published the advisory."}, {"time": "2026-08-06T16:04:00.000Z", "lang": "en", "value": "Postiz has assigned CVE-2026-19127 for this advisory."}]}}}

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