WP Ultimate Post Grid <= 3.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via wpupg-text Shortcode
Vulnerability Description
The WP Ultimate Post Grid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wpupg-text' shortcode in all versions up to, and including, 3.9.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-4043
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Krzysztof Zając
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/14e897f0-11e6-43b1-908c-be4ecdc7fd58?source=cve
- https://plugins.trac.wordpress.org/browser/wp-ultimate-post-grid/trunk/includes/public/shortcodes/general/class-wpupg-sc-text.php#L97
- https://plugins.trac.wordpress.org/changeset/3086319/
- https://wordpress.org/plugins/wp-ultimate-post-grid/#developers
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