CVE-2026-86612: Unknown Ninja Tables

Medium severity, CVSS 5.6. EPSS: 0.2% chance of exploitation in the next 30 days.

The Ninja Tables WordPress plugin before 5.2.17 does not restrict shortcode expansion to administrator-authored table rows which, in a non-default configuration, allows unauthenticated users to have arbitrary shortcodes executed on a public page, and to permanently break that page, by submitting an ordinary form entry.

Affected products

• Unknown Ninja Tables: before 5.2.17 (fixed in 5.2.17)

Published 2026-09-23. Last modified 2026-09-23.