CVE-2026-16747: Unknown Kirki

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

The Kirki WordPress plugin before 6.2.1 does not properly authorise its front-end form submission REST routes and passes attacker-controlled input through shortcode execution, allowing unauthenticated users to run any shortcode registered on the site, which on a default install leads to disclosure of the site administrator's email address and an arbitrary-recipient mail relay from the victim's domain.

Affected products

• Unknown Kirki: before 6.2.1 (fixed in 6.2.1)

Published 2026-08-12. Last modified 2026-08-26.