What’s Vulnerable › Vulnerabilities
CVE-2026-15368: Profile Builder < 3.16.4 - Unauthenticated Account Takeover via Auto-Login After Registration
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-01 · updated 2026-08-26
- Weakness: CWE-269
Description
The User Profile Builder WordPress plugin before 3.16.4 does not correctly bind the automatic login performed after user registration to the newly created account, allowing unauthenticated attackers to obtain an authenticated session for an arbitrary existing user, including administrators, on sites using a supported but non-default configuration.
Affected products
- cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor: before 3.16.4 — fixed in 3.16.4
How to fix
Upgrade to a fixed version: cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor 3.16.4. Check the vendor advisory for mitigations.
References
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