CVE-2024-31119 in Special Box for Content Plugin
Summary
by MITRE • 03/20/2026
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Vasilis Triantafyllou Special Box for Content allows DOM-Based XSS.This issue affects Special Box for Content: from n/a through 1.
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Analysis
by VulDB Data Team • 03/26/2026
The vulnerability identified as CVE-2024-31119 represents a critical cross-site scripting flaw within the Special Box for Content plugin developed by Vasilis Triantafyllou. This DOM-based XSS vulnerability occurs during the web page generation process when input parameters are inadequately sanitized or neutralized before being incorporated into dynamic web content. The flaw specifically manifests in the plugin's handling of user-supplied data that gets reflected or executed within the browser's Document Object Model without proper validation or encoding mechanisms.
The technical implementation of this vulnerability stems from the plugin's failure to properly escape or encode user input before rendering it within web pages. When malicious actors craft specific input sequences that contain script tags or other executable code, these inputs are directly embedded into the DOM structure without appropriate sanitization. This creates an environment where attackers can inject malicious JavaScript code that executes in the context of other users' browsers. The vulnerability exists across all versions of the plugin from the initial release through version 1, indicating a fundamental flaw in the input handling architecture that has persisted throughout the plugin's development lifecycle.
From an operational impact perspective, this vulnerability exposes users to significant security risks including session hijacking, credential theft, and potential full system compromise. Attackers can leverage this DOM-based XSS to steal user sessions, redirect victims to malicious sites, or inject additional malicious payloads that persist within the affected web application. The attack vector is particularly dangerous because it operates entirely within the browser environment, making it difficult to detect through traditional network monitoring approaches. Users who interact with the plugin's functionality are at risk of having their browser manipulated without their knowledge or consent.
The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, and maps to ATT&CK technique T1566.001 for initial access through spearphishing attachments or links. Organizations using this plugin should immediately implement mitigations including input validation, output encoding, and the implementation of Content Security Policies to prevent script execution. The recommended remediation involves proper sanitization of all user inputs before they are processed and rendered within web pages, ensuring that any potentially malicious content is neutralized through appropriate encoding mechanisms. Additionally, implementing proper security headers and establishing a robust input validation framework will significantly reduce the attack surface and prevent similar vulnerabilities from occurring in the future.