CVE-2025-23927 in Incredible Font Awesome Plugin
Summary
by MITRE • 01/16/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Massimo Serpilli Incredible Font Awesome allows Stored XSS.This issue affects Incredible Font Awesome: from n/a through 1.0.
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Analysis
by VulDB Data Team • 02/10/2025
The vulnerability identified as CVE-2025-23927 represents a critical cross-site scripting flaw within the Massimo Serpilli Incredible Font Awesome plugin, classified under CWE-79 as improper neutralization of input during web page generation. This stored XSS vulnerability arises from inadequate sanitization of user-supplied data that is subsequently rendered in web pages without proper encoding or validation mechanisms. The affected plugin version range spans from an unknown initial state through version 1.0, indicating that the flaw exists in all iterations within this release cycle. The vulnerability manifests when malicious input is accepted and stored within the plugin's data handling processes, creating a persistent threat vector that can affect users who view pages containing this compromised content.
The technical exploitation of this vulnerability occurs through the manipulation of input fields that are intended to accept font configuration parameters, icon selections, or other user-customizable elements within the plugin's interface. When attackers submit malicious script code through these input points, the system fails to properly sanitize or encode the data before storing it in the database or configuration files. This stored malicious content then executes whenever legitimate users access pages that render the compromised data, typically through web browsers that interpret the embedded scripts as part of the page content. The vulnerability operates at the application layer and can be categorized under the ATT&CK framework as T1566.001 - Phishing with Social Engineering, specifically targeting the execution of malicious scripts through compromised web content.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling attackers to hijack user sessions, steal sensitive cookies, redirect users to malicious domains, or perform actions on behalf of authenticated users. The stored nature of the XSS vulnerability means that the malicious payload persists even after the initial injection, allowing attackers to maintain access to compromised systems over extended periods without requiring repeated exploitation attempts. This makes the vulnerability particularly dangerous for environments where the plugin is widely used or where administrators may not regularly monitor for malicious content. The attack surface is amplified when the plugin is integrated into content management systems or web applications that allow user-generated content, as the vulnerability can be leveraged to compromise entire web applications through the vulnerable plugin.
Mitigation strategies for CVE-2025-23927 should prioritize immediate plugin updates to versions that address the input sanitization flaws, as recommended by the vendor and security advisories. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent malicious data from being stored or executed within the application environment. The implementation of Content Security Policy headers can provide additional protection against script execution, while regular security audits of plugin installations should be conducted to identify similar vulnerabilities. Network monitoring solutions should be configured to detect anomalous script patterns in web traffic, and user access controls should be reviewed to limit the ability of untrusted users to inject content into vulnerable systems. The vulnerability underscores the importance of following secure coding practices such as those outlined in OWASP Top Ten and ISO/IEC 27001 security standards, particularly regarding input validation and output encoding requirements.