EUVD-2026-14171
GHSA-9479-m26h-g85h
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Description
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.
Analysis
The Multi Post Carousel by Category WordPress plugin contains a Stored Cross-Site Scripting (XSS) vulnerability in the 'slides' shortcode attribute due to insufficient input sanitization and output escaping in the post_slides_shortcode function. Authenticated attackers with Contributor-level access or higher can inject arbitrary JavaScript code into pages, and the malicious script will execute whenever any user visits the affected page. …
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Remediation
Within 30 days: Identify affected systems running all and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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