{"id":"CVE-2026-121735","title":"blueprintUE Self-Hosted Edition before 4.3.4 Non-Expiring Account Confirmation Tokens","summary":"blueprintUE self-hosted edition before 4.3.4 contains an insufficient session expiration vulnerability that allows attackers to confirm accounts using stale tokens because UserModel::findUserIDWithConfirmedToken ignores confirmed_sent_at…","severity":"low","cvss":3.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-613"],"vendor":"blueprintue","product":"blueprintue-self-hosted-edition","affected":["blueprintue-self-hosted-edition < 4.3.4"],"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T22:55:39.265Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121735","references":[{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/8bba1615bf76b144ac5cd72637c243490f08bc37","label":"Patch Commit"},{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition"},{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-qp6g-7v4v-33r9","label":"GitHub Security Advisory (GHSA-qp6g-7v4v-33r9)"},{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/266"},{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/models/UserModel.php#L361-L368"},{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4","label":"blueprintUE v4.3.4 Release Notes"},{"url":"https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.4-non-expiring-account-confirmation-tokens","label":"VulnCheck Advisory: blueprintUE Self-Hosted Edition before 4.3.4 Non-Expiring Account Confirmation Tokens"}],"tags":["cve.org"],"epss":0.0023,"epssPercentile":0.13909,"ingestedAt":"2026-11-05T20:33:06.611Z","slug":"CVE-2026-121735","body":"## Overview\n\nblueprintUE self-hosted edition before 4.3.4 contains an insufficient session expiration vulnerability that allows attackers to confirm accounts using stale tokens because UserModel::findUserIDWithConfirmedToken ignores confirmed_sent_at. Attackers who obtain an old confirmation link from a compromised mailbox, backup, or forwarded mail can activate unconfirmed accounts and evade the unconfirmed-account cleanup job.\n\n## Affected\n\n- `blueprintue-self-hosted-edition < 4.3.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":20.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}