CVE-2026-1275: Gbsdeveloper Multi Post Carousel By Category

Medium severity, CVSS 6.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The Multi Post Carousel by Category plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'slides' shortcode attribute in all versions up to, and including, 1.4. This is due to insufficient input sanitization and output escaping on the user-supplied 'slides' parameter in the post_slides_shortcode function. 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

• Gbsdeveloper Multi Post Carousel By Category: up to and including 1.4

Published 2026-03-21. Last modified 2026-06-17.