CVE-2026-103519: CWE-94 Improper Control of Generation of Code ('Code Injection') in roxnor WP Ultimate Review
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.
AI Analysis
Technical Summary
CVE-2026-103519 is a code injection vulnerability (CWE-94) in the WP Ultimate Review plugin for WordPress. Versions up to and including 2.4.3 allow authenticated users with subscriber-level privileges or higher to execute arbitrary shortcodes. The vulnerability arises from improper validation of user input before invoking do_shortcode. The attack leverages WordPress's strip_shortcodes function, which unwraps double-bracketed shortcodes ([[tag]]) into single-bracketed ones ([tag]) that persist through wp_insert_post storage and execute when the xs_review post type content is rendered.
Potential Impact
An attacker with subscriber-level or higher access can execute arbitrary shortcodes, potentially leading to unauthorized actions or information disclosure within the WordPress site context. The CVSS score of 5.4 indicates a medium severity impact with low complexity and no user interaction required. There is no indication of denial of service or system-level compromise from the provided data.
Mitigation Recommendations
No official patch or fix is currently documented. Users should monitor the vendor's advisory channels for updates. Until a fix is available, restrict subscriber-level user capabilities if possible and avoid installing or using the affected plugin versions. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-103519: CWE-94 Improper Control of Generation of Code ('Code Injection') in roxnor WP Ultimate Review
Description
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.
CVSS v3.1
Score 5.4medium
Affected software
roxnor
WP Ultimate Review
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-103519 is a code injection vulnerability (CWE-94) in the WP Ultimate Review plugin for WordPress. Versions up to and including 2.4.3 allow authenticated users with subscriber-level privileges or higher to execute arbitrary shortcodes. The vulnerability arises from improper validation of user input before invoking do_shortcode. The attack leverages WordPress's strip_shortcodes function, which unwraps double-bracketed shortcodes ([[tag]]) into single-bracketed ones ([tag]) that persist through wp_insert_post storage and execute when the xs_review post type content is rendered.
Potential Impact
An attacker with subscriber-level or higher access can execute arbitrary shortcodes, potentially leading to unauthorized actions or information disclosure within the WordPress site context. The CVSS score of 5.4 indicates a medium severity impact with low complexity and no user interaction required. There is no indication of denial of service or system-level compromise from the provided data.
Mitigation Recommendations
No official patch or fix is currently documented. Users should monitor the vendor's advisory channels for updates. Until a fix is available, restrict subscriber-level user capabilities if possible and avoid installing or using the affected plugin versions. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-09-30T19:01:44.804Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac0abd5a43b0b3b89a7e7c6
Added to database: 10/03/2026, 07:16:37 UTC
Last enriched: 10/03/2026, 07:32:04 UTC
Last updated: 10/04/2026, 04:45:56 UTC
Views: 16
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