CVE-2026-78362: Unknown Seo Flow By Lupsonline

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Unknown Seo Flow By Lupsonline: from 3.0.0, before 3.0.3 (fixed in 3.0.3)

Published 2026-09-05. Last modified 2026-09-08.