What’s Vulnerable › Vulnerabilities

CVE-2024-2006: Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget <= 1.6.7 - Authenticated (Contributor+) PHP Object Injection in outpost_shortcode_metabox_markup

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-13 · updated 2026-06-17
• Weakness: CWE-502

Description

The Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.6.7 via deserialization of untrusted input in the outpost_shortcode_metabox_markup function. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Affected products

• wpwax Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget: before 1.6.8 — fixed in 1.6.8

How to fix

Upgrade to a fixed version: wpwax Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget 1.6.8. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/post-grid-carousel-ultimate/trunk/includes/classes/metabox.php#L43
• https://plugins.trac.wordpress.org/changeset?old_path=/post-grid-carousel-ultimate/tags/1.6.7&old=3045923&new_path=/post-grid-carousel-ultimate/tags/1.6.8&new=3045923&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/8cf1b234-862b-41a0-ab63-a986f8023613?source=cve
• https://plugins.trac.wordpress.org/browser/post-grid-carousel-ultimate/trunk/includes/classes/metabox.php#L43
• https://plugins.trac.wordpress.org/changeset?old_path=/post-grid-carousel-ultimate/tags/1.6.7&old=3045923&new_path=/post-grid-carousel-ultimate/tags/1.6.8&new=3045923&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/8cf1b234-862b-41a0-ab63-a986f8023613?source=cve

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