CVE-2024-3997 in Prime Slider Plugin
Summary
by MITRE • 05/23/2024
The Prime Slider – Addons For Elementor (Revolution of a slider, Hero Slider, Ecommerce Slider) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Pagepiling widget in all versions up to, and including, 3.14.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
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Analysis
by VulDB Data Team • 03/28/2025
The Prime Slider plugin for WordPress represents a widely used extension that enhances website functionality through various slider widgets including pagepiling features. This particular vulnerability affects versions up to and including 3.14.1, creating a significant security risk for WordPress sites utilizing the plugin. The flaw exists within the Pagepiling widget implementation where the plugin fails to properly sanitize and escape user-supplied input parameters before rendering them in web pages. This represents a classic stored cross-site scripting vulnerability that allows attackers to inject malicious scripts that persist in the database and execute whenever affected pages are accessed.
The technical nature of this vulnerability stems from inadequate input validation and output escaping mechanisms within the plugin's codebase. When administrators or users with contributor-level privileges create or modify slider configurations, they can inject malicious JavaScript code through attributes that are not properly sanitized. The vulnerability manifests because the plugin does not adequately filter or escape user-provided data before storing it in the WordPress database, nor does it properly escape this data when rendering it in the frontend. This stored XSS flaw allows attackers to execute scripts in the context of the victim's browser, potentially enabling session hijacking, credential theft, or other malicious activities.
The operational impact of this vulnerability is particularly concerning given the low privilege requirements needed to exploit it. Attackers need only contributor-level access to WordPress, which is often granted to content editors or regular users in many organizations. This means that even users who should have limited administrative capabilities can potentially compromise the entire site. Once exploited, the injected scripts can execute in the context of any user who visits pages containing the malicious content, making it a persistent threat that affects all site visitors. The vulnerability is especially dangerous in enterprise environments where multiple users have contributor access and may not be adequately monitored or restricted.
Organizations should immediately update to the latest version of the Prime Slider plugin where this vulnerability has been addressed through proper input sanitization and output escaping mechanisms. System administrators should also implement additional monitoring to detect suspicious activity related to slider configurations and user modifications. Security teams should consider implementing content security policies to mitigate the impact of any successful exploitation attempts. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a clear violation of secure coding practices that should be addressed through proper input validation and output escaping. From an ATT&CK perspective, this vulnerability maps to techniques involving credential access and privilege escalation through web application vulnerabilities, making it a critical concern for organizations relying on WordPress platforms.