CVE-2021-30209: Textpattern

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.

Affected products

• Textpattern Textpattern: version 4.8.4 only

Published 2021-04-15. Last modified 2026-06-17.