CVE-2025-49043 in Magic Responsive Slider and Carousel Plugin
Summary
by MITRE • 01/22/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup Magic Responsive Slider and Carousel WordPress magic_carousel allows Reflected XSS.This issue affects Magic Responsive Slider and Carousel WordPress: from n/a through <= 1.6.
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Analysis
by VulDB Data Team • 01/24/2026
This vulnerability represents a classic cross-site scripting flaw that exploits improper input handling during web page generation within the LambertGroup Magic Responsive Slider and Carousel WordPress plugin. The reflected XSS vulnerability occurs when user-supplied input is not properly sanitized or encoded before being rendered back to the browser in the context of a web page. This allows an attacker to inject malicious scripts that execute in the context of other users' browsers who view the affected content. The vulnerability specifically affects versions of the plugin from an unknown starting point through version 1.6, indicating a long-standing issue that has not been properly addressed in the plugin's input validation mechanisms.
The technical flaw stems from the plugin's failure to implement proper output encoding or input sanitization when processing parameters that are reflected back to users. When a user visits a page that includes user-controllable parameters in the URL or form submissions, the plugin directly incorporates these parameters into the generated HTML without adequate filtering or encoding. This creates an environment where malicious scripts can be injected and executed in the victim's browser context, potentially leading to session hijacking, credential theft, or other malicious activities. The vulnerability operates at the web application level and specifically targets the plugin's handling of user input during dynamic page generation processes.
The operational impact of this reflected XSS vulnerability is significant as it can be exploited through social engineering attacks where users are tricked into clicking malicious links. Attackers can craft URLs that contain malicious script payloads which, when visited by authenticated users with appropriate privileges, will execute the injected code in their browser. This could allow attackers to steal cookies, modify content, redirect users to malicious sites, or perform actions on behalf of the victim. The reflected nature of the vulnerability means that the attack payload is not stored on the server but rather delivered through a crafted request that is immediately reflected back to the user, making it particularly dangerous for websites with active user interaction.
Mitigation strategies should focus on implementing proper input validation and output encoding mechanisms within the plugin. The recommended approach involves sanitizing all user-supplied input before incorporating it into dynamic web page content and ensuring that any output is properly encoded for the specific context in which it appears. This aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities and recommends input validation and output encoding as primary defenses. Additionally, the plugin should be updated to version 1.7 or later where the vulnerability has been patched, and administrators should implement web application firewalls or content security policies to provide additional layers of protection against such attacks. Regular security audits and input validation testing should be conducted to prevent similar issues from emerging in future versions of the plugin.