MEDIUM 6.3 NVD
CVE-2026-121735
blueprintUE self-hosted edition before 4.3.4 contains an insufficient session expiration vulnerability that allows attackers to confirm accounts using stale tok
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/blueprintue/blueprintue-self-hosted-edition
- https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/models/User
- https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/8bba1615bf76b144ac5c
- https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/266
- https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-11-03 via NVD.
vulnfeed aggregates 18613 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.