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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Kirki Plugin | — | Update kirki plugin to version 6.2.1, or a newer patched version | Oct 30, 2026 | Aug 24, 2026 |
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