What’s Vulnerable › Vulnerabilities
CVE-2026-16260: Post Grid, Slider & Carousel Ultimate < 1.8.1 - Contributor+ Stored XSS via Header Title Field
- Severity: medium (CVSS 6.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-22 · updated 2026-10-12
- Weakness: CWE-79
Description
The Post Grid, Slider & Carousel Ultimate WordPress plugin before 1.8.1 does not sanitise and escape one of its custom post type settings before outputting it in an HTML attribute on the admin edit screen, allowing users with the Contributor role and above to inject JavaScript that executes in the session of any administrator who opens the affected item.
Affected products
- wpwax Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget: before 1.8.1 — fixed in 1.8.1
How to fix
Upgrade to a fixed version: wpwax Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget 1.8.1. Check the vendor advisory for mitigations.
References
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