CVE-2026-22347 in Carousel Horizontal Posts Content Slider Plugin
Summary
by MITRE • 01/22/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in subhansanjaya Carousel Horizontal Posts Content Slider carousel-horizontal-posts-content-slider allows DOM-Based XSS.This issue affects Carousel Horizontal Posts Content Slider: from n/a through <= 3.3.2.
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Analysis
by VulDB Data Team • 01/28/2026
This vulnerability represents a critical cross-site scripting flaw classified as CWE-79 Improper Neutralization of Input During Web Page Generation which specifically targets the carousel-horizontal-posts-content-slider plugin for content management systems. The weakness manifests as a DOM-based XSS vulnerability that occurs during the web page generation process when user-supplied input is not properly sanitized or escaped before being rendered in the browser environment. The vulnerability affects all versions of the plugin up to and including version 3.3.2, indicating a prolonged exposure window where malicious actors could exploit this flaw to execute arbitrary JavaScript code within the context of affected websites.
The technical implementation of this vulnerability stems from the plugin's failure to adequately validate and sanitize input parameters that are processed through the Document Object Model during dynamic content rendering. When the slider component processes user data or configuration parameters, it directly incorporates these inputs into DOM operations without proper HTML escaping or context-aware sanitization mechanisms. This allows attackers to inject malicious scripts that execute in the victim's browser when the affected page loads, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of users.
The operational impact of this vulnerability extends beyond simple script execution as it creates a persistent threat vector that can be leveraged for advanced persistent threats within compromised web environments. Attackers can craft malicious payloads that exploit the DOM-based XSS to manipulate the slider functionality itself, potentially redirecting users to malicious sites or injecting additional malicious code into the page. This vulnerability directly aligns with ATT&CK technique T1531 Credential Access through DOM-based XSS, as it provides attackers with the means to harvest user sessions and credentials. The vulnerability also enables broader attack chains where the compromised slider component can serve as a foothold for more extensive web application attacks, particularly in environments where administrators may not immediately patch vulnerable components.
Mitigation strategies should prioritize immediate plugin updates to versions beyond 3.3.2 where the XSS vulnerability has been addressed through proper input sanitization and output escaping mechanisms. Organizations should implement comprehensive input validation at multiple layers including client-side and server-side filtering, along with robust content security policy implementations that restrict script execution. Additionally, security monitoring should be enhanced to detect unusual patterns in slider component usage that might indicate exploitation attempts. The vulnerability serves as a reminder of the critical importance of input validation in web applications and demonstrates how seemingly minor components can create significant security risks when proper sanitization practices are not implemented. Security teams should conduct thorough vulnerability assessments of all web application components to identify similar weaknesses in input handling and output generation processes, particularly in plugins and third-party libraries that may not receive regular security updates.