CVE-2026-121735
Dashboard / Vulnerabilities / CVE-2026-121735
Summary: blueprintUE Self-Hosted Edition before 4.3.4 Non-Expiring Account Confirmation Tokens
Details: 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. 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.
References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121735.json, https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4, https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-qp6g-7v4v-33r9, https://nvd.nist.gov/vuln/detail/CVE-2026-121735, https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.4-non-expiring-account-confirmation-tokens, https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/8bba1615bf76b144ac5cd72637c243490f08bc37, https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/266, https://github.com/blueprintue/blueprintue-self-hosted-edition, https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/models/UserModel.php#L361-L368
Affected packages
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