CVE-2026-15233: Unknown Nested Pages

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

The Nested Pages WordPress plugin before 3.2.15 does not properly escape post titles before outputting them into HTML attributes on an administrative listing screen, allowing users with the Editor role (or Contributor/Author when the Nested Pages WordPress plugin before 3.2.15 is enabled for the post type) to inject arbitrary JavaScript that executes in the session of any higher-privileged user who views that screen.

Affected products

• Unknown Nested Pages: before 3.2.15 (fixed in 3.2.15)

Published 2026-08-04. Last modified 2026-08-26.