CVE-2026-103519: WP Ultimate Review <= 2.4.3 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'xs_reviw_summery' Parameter
The The WP Ultimate Review plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.4.3. This is due to the software allowing users to execute an action that does not properly validate a value before running doshortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. The bypass relies on WordPress's own stripshortcodes() function unwrapping the [[tag]] double-bracket escape to a bare [tag] that survives wpinsertpost storage and fires when the publicly queryable xsreview post type is rendered through thecontent.
Affected Software
Event History
Frequently Asked Questions
What level of access does an attacker need?
An attacker must be authenticated with at least Subscriber-level access. No user interaction is required.
When is a submitted shortcode payload executed?
The payload is stored in an xs_review post and executes when that publicly queryable post type is rendered through WordPress's the_content processing.