CVE-2026-81571: Unknown Brave

Medium severity, CVSS 4.8. EPSS: 0.2% chance of exploitation in the next 30 days.

The Brave WordPress plugin before 0.8.8 does not prevent a URL parameter used to pre-fill a form field from being passed to WordPress's shortcode engine, allowing unauthenticated attackers to have arbitrary shortcodes registered on the site executed server-side.

Affected products

• Unknown Brave: before 0.8.8 (fixed in 0.8.8)

Published 2026-09-02. Last modified 2026-09-03.