CVE-2024-49323 in All in One Slider Plugin
Summary
by MITRE • 10/20/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Shahriar Alam All in One Slider all-in-one-slider allows Reflected XSS.This issue affects All in One Slider: from n/a through <= 1.1.
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Analysis
by VulDB Data Team • 04/06/2026
This vulnerability represents a classic reflected cross-site scripting flaw that exists within the Shahriar Alam All in One Slider WordPress plugin. The issue stems from inadequate input sanitization during web page generation processes where user-supplied data is not properly neutralized before being rendered in web responses. This allows malicious actors to inject malicious scripts that execute in the context of other users' browsers, making it a significant security concern for any website utilizing this plugin. The vulnerability specifically affects versions of the plugin ranging from the initial release through version 1.1, indicating that the flaw has persisted across multiple iterations without proper remediation.
The technical implementation of this vulnerability occurs when the plugin processes user input through URL parameters or form fields without adequate validation or sanitization mechanisms. When a user visits a page that contains maliciously crafted input, the plugin fails to properly escape or encode the data before inserting it into HTML output. This creates an environment where attacker-controlled scripts can be executed within the victim's browser context, potentially leading to session hijacking, credential theft, or other malicious activities. The reflected nature of this XSS means that the malicious payload must be crafted to be included in a URL or form submission, which is then reflected back to the user's browser through the vulnerable plugin functionality.
The operational impact of this vulnerability extends beyond simple script execution as it can be leveraged for more sophisticated attacks within the context of the compromised website. Attackers can exploit this flaw to steal administrator sessions, modify content, redirect users to malicious sites, or even install backdoors on the affected website. The vulnerability affects any user who visits pages utilizing the slider functionality, making it particularly dangerous for websites with high user interaction or those that rely on user-generated content. The reflected nature of the attack means that victims must be tricked into clicking malicious links, but once clicked, the attack executes automatically without requiring additional user interaction.
Mitigation strategies for this vulnerability should prioritize immediate plugin updates to versions that address the XSS flaw, as this represents the most effective solution for eliminating the security risk. System administrators should also implement proper input validation and output encoding mechanisms at multiple layers of their web application architecture, following established security practices such as those outlined in the OWASP Top Ten and CWE-79. Additional protective measures include implementing content security policies to limit script execution, using web application firewalls to detect and block malicious payloads, and conducting regular security assessments to identify similar vulnerabilities in other components of the web application stack. Organizations should also consider implementing proper security monitoring and incident response procedures to detect and respond to potential exploitation attempts. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws and represents a fundamental security weakness that requires comprehensive remediation across all affected systems.