What’s Vulnerable › Vulnerabilities

CVE-2024-4043: WP Ultimate Post Grid <= 3.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via wpupg-text Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-23 · updated 2026-06-17
• Weakness: CWE-79

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

• brechtvds WP Ultimate Post Grid: through 3.9.1

References

• 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
• 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
• https://www.wordfence.com/threat-intel/vulnerabilities/id/14e897f0-11e6-43b1-908c-be4ecdc7fd58?source=cve

Get alerted when CVE-2024-4043 or the next vulnerability affects your stack