CVE-2026-78362 SEO Flow by LupsOnline 3.0.0 - 3.0.2 - Unauthenticated Privilege Escalation via API Key Authentication

Critical 9.8 Published Updated

Unauthenticated attackers can bypass API key validation to gain administrator privileges and take over the WordPress site.

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-2026-78362?

CVE-2026-78362 is a critical authentication bypass vulnerability in Unknown SEO Flow by LupsOnline, published on 5 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SEO Flow by LupsOnline WordPress plugin before 3.0.3 does not correctly validate the credential supplied with its API requests, allowing unauthenticated users to be served as the administrator who configured the SEO Flow by LupsOnline WordPress plugin before 3.0.3 and take over the site. Exploitation requires the SEO Flow by LupsOnline WordPress plugin before 3.0.3 to have been configured, which is its normal operating state.

Weakness: CWE-269

Which versions are affected by CVE-2026-78362?

How do I fix CVE-2026-78362?

No fix has been published for CVE-2026-78362 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-2026-78362 being exploited?

There is no known exploitation of CVE-2026-78362 in the wild and no public exploit code.

Sources

Also known as GHSA-rp68-vhcr-9v26.

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