CVE-2026-121735mediumCWE-613

CVE-2026-121735: medium-severity vulnerability in blueprintue-self-hosted-edition

blueprintUE Self-Hosted Edition before 4.3.4 Non-Expiring Account Confirmation Tokens

Published

Follow this CVE+ Monitor blueprintue-self-hosted-edition

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

10Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.3
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.
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
Affected products
blueprintue · blueprintue-self-hosted-edition
Related CVEs — blueprintue-self-hosted-edition

In the same product, most dangerous first.

CVE-2026-40586HIGHblueprintUE: Login Endpoint Has No Rate Limiting, Lockout, or Brute-Force ProtectionEPSS 0.4%CVE-2026-40588HIGHblueprintUE: Authenticated Password Change Does Not Verify Current PasswordEPSS 0.3%CVE-2026-40585HIGHblueprintUE: Password Reset Tokens Have No Expiry WindowEPSS 0.3%CVE-2026-40587MEDIUMblueprintUE: Active Sessions Are Not Invalidated After Password Change or ResetEPSS 0.2%