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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| brechtvds | WP Ultimate Post Grid | ≤ 3.9.1 | — |
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