CVE-2026-15368 Profile Builder < 3.16.4 - Unauthenticated Account Takeover via Auto-Login After Registration
Unauthenticated attackers can hijack sessions of arbitrary users, including administrators, via flawed auto-login logic in the User Profile Builder plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15368?
CVE-2026-15368 is a high-severity authentication bypass vulnerability in Unknown User Profile Builder, published on 1 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-15368?
How do I fix CVE-2026-15368?
No fix has been published for CVE-2026-15368 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-15368 being exploited?
There is no known exploitation of CVE-2026-15368 in the wild and no public exploit code.
Sources
Also known as GHSA-p782-jwj4-rqqc.