RCE in Roxnor Wp Ultimate Review
CVE-2026-103519
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 do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. The bypass relies on WordPress's own strip_shortcodes() function unwrapping the [[tag]] double-bracket escape to a bare [tag] that survives wp_insert_post storage and fires when the publicly queryable xs_review post type is rendered through the_content.
Vulnerability class: RCE (Remote Code Execution)
Published .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/content.php
- plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/content.php
- plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/content.php
- plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/init.php
- plugins.trac.wordpress.org/changeset
- www.wordfence.com/threat-intel/vulnerabilities/id/76986a3a-67f8-4d91-9f48-88fad…
Frequently asked questions
- What is CVE-2026-103519?
- CVE-2026-103519 is a medium-severity vulnerability in Roxnor Wp Ultimate Review, classified under Code Injection. CVSS score: 5.4/10. Published 2026-10-03.
- How severe is CVE-2026-103519?
- Medium severity. CVSS v3 base score is 5.4 out of 10.