CVE-2026-100157: 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 unauthenticated attackers to execute arbitrary shortcodes. The nonce required to pass the only gate is emitted to unauthenticated visitors via the public review form, and submitted shortcode payloads are auto-published without admin approval by default, meaning exploitation requires no account and no privileged interaction.
AI Analysis
Technical Summary
CVE-2026-100157 is a code injection vulnerability (CWE-94) in the WP Ultimate Review WordPress plugin (versions <=2.4.3). The flaw arises from improper validation of user input before executing do_shortcode, allowing unauthenticated attackers to execute arbitrary shortcodes. The nonce protecting the action is exposed to unauthenticated users through the public review form, and the plugin auto-publishes submitted shortcodes without admin approval by default, facilitating exploitation without authentication or elevated privileges.
Potential Impact
An unauthenticated attacker can execute arbitrary shortcodes on a vulnerable WordPress site running WP Ultimate Review plugin versions up to 2.4.3. This can lead to limited confidentiality and integrity impacts as indicated by the CVSS vector (C:L/I:L/A:N). The vulnerability does not require user interaction or privileges and can be exploited remotely over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, administrators should consider disabling the public review form or modifying plugin settings to require admin approval for submitted reviews to prevent automatic publishing of shortcode payloads.
CVE-2026-100157: 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 unauthenticated attackers to execute arbitrary shortcodes. The nonce required to pass the only gate is emitted to unauthenticated visitors via the public review form, and submitted shortcode payloads are auto-published without admin approval by default, meaning exploitation requires no account and no privileged interaction.
CVSS v3.1
Score 6.5medium
Affected software
roxnor
WP Ultimate Review
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-100157 is a code injection vulnerability (CWE-94) in the WP Ultimate Review WordPress plugin (versions <=2.4.3). The flaw arises from improper validation of user input before executing do_shortcode, allowing unauthenticated attackers to execute arbitrary shortcodes. The nonce protecting the action is exposed to unauthenticated users through the public review form, and the plugin auto-publishes submitted shortcodes without admin approval by default, facilitating exploitation without authentication or elevated privileges.
Potential Impact
An unauthenticated attacker can execute arbitrary shortcodes on a vulnerable WordPress site running WP Ultimate Review plugin versions up to 2.4.3. This can lead to limited confidentiality and integrity impacts as indicated by the CVSS vector (C:L/I:L/A:N). The vulnerability does not require user interaction or privileges and can be exploited remotely over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, administrators should consider disabling the public review form or modifying plugin settings to require admin approval for submitted reviews to prevent automatic publishing of shortcode payloads.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-09-25T12:18:04.662Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac0abd5a43b0b3b89a7e7c4
Added to database: 10/03/2026, 07:16:37 UTC
Last enriched: 10/03/2026, 07:32:13 UTC
Last updated: 10/04/2026, 04:45:56 UTC
Views: 19
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