PT-2026-136718

CVE-2026-121735

Published

2026-11-03

Updated

2026-11-03

Description by

CVSS 4.0

6.3

Medium

MetricsAV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions blueprintUE self-hosted edition versions prior to 4.3.4

Description An insufficient session expiration issue exists where the findUserIDWithConfirmedToken() function in UserModel ignores the confirmed sent at variable. This allows attackers who obtain an old confirmation link from a compromised mailbox, backup, or forwarded mail to activate unconfirmed accounts and evade the cleanup job designed to remove unconfirmed accounts.

Recommendations Update blueprintUE self-hosted edition to version 4.3.4 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Vendors

Affected products

Weakness enumeration

CWE-613: Insufficient Session Expiration

Related identifiers

CVE-2026-121735