CVE-2026-121735
blueprintUE Self-Hosted Edition before 4.3.4 Non-Expiring Account Confirmation Tokens
- State
- Published
- Severity
- 6.3 Medium
- Published
- Nov 3, 2026
- Updated
- Nov 3, 2026
- Reserved
- Nov 3, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-613 Insufficient Session Expiration
Affected Products
| Product | Versions |
|---|---|
blueprintue-self-hosted-editionblueprintue |
|
References
- Patch Commitpatch
- https://github.com/blueprintue/blueprintue-self-hosted-editionproduct
- GitHub Security Advisory (GHSA-qp6g-7v4v-33r9)vendor-advisory
- https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/266patchissue-tracking
- https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/models/UserModel.php#L361-L368technical-description
- blueprintUE v4.3.4 Release Notesrelease-notes
- VulnCheck Advisory: blueprintUE Self-Hosted Edition before 4.3.4 Non-Expiring Account Confirmation Tokensthird-party-advisory
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