CVE-2026-119490 in Better Notifications for WP Plugin
Summary
by MITRE • 11/07/2026
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Made with Fuel Ltd. Better Notifications for WP bnfw allows Code Injection.This issue affects Better Notifications for WP: from n/a through 1.10.1.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 11/07/2026
The identified security flaw represents a classic Cross-Site Scripting vulnerability, specifically categorized under CWE-79 as Improper Neutralization of Script-Related HTML Tags in a Web Page. This weakness occurs within the Better Notifications for WP plugin developed by Made with Fuel Ltd., affecting versions ranging from initial releases up through version 1.10.1. The core technical issue stems from insufficient input validation and output encoding mechanisms when processing user-supplied data that is subsequently rendered into HTML contexts without proper sanitization. This allows an attacker to inject malicious script tags or other executable code fragments directly into the web page content, bypassing standard browser security models such as the same-origin policy which normally restricts how documents loaded from one origin can interact with resources from another origin.
From a technical perspective, this vulnerability enables Code Injection by allowing attackers to execute arbitrary JavaScript in the context of the victim's session. When a user interacts with a compromised page or visits a URL containing the malicious payload, the browser interprets the injected script as legitimate code belonging to the website. This can lead to severe operational impacts including session hijacking where an attacker steals authentication cookies and tokens, credential theft by displaying fake login forms via phishing techniques embedded in the injection, defacement of the website's appearance, or redirection of users to malicious external sites designed for further exploitation such as malware distribution. The impact is particularly acute because WordPress plugins often have broad access to site data and functionality, meaning a successful exploit could compromise not just individual user accounts but potentially the entire administrative backend if an administrator views the poisoned content.
In terms of threat modeling and industry frameworks, this vulnerability aligns with MITRE ATT&CK technique T1059 which covers Command and Scripting Interpretation, specifically within web application environments where JavaScript execution is leveraged for malicious purposes. It also relates to CWE-83 regarding Improper Neutralization of Script in HTML Attributes since the injection likely targets attributes or content areas that are parsed by the browser's rendering engine without adequate filtering. The persistence of this issue across multiple versions indicates a systemic lack of robust input handling practices within the plugin’s codebase, highlighting common pitfalls in WordPress development where direct database queries and output operations may not consistently apply escaping functions like esc_html or wp_kses_post before displaying data to end users.
Mitigation strategies must focus on both immediate remediation and long-term security hygiene. The primary solution is for administrators of affected sites to upgrade the Better Notifications for WP plugin to a version released after 1.10.1 where this vulnerability has been patched by implementing strict input validation and output encoding. For organizations unable to immediately patch, temporary mitigations include deploying Web Application Firewalls configured with rulesets capable of detecting and blocking common XSS payloads such as script tags or event handlers like onerror or onload. Additionally, enforcing Content Security Policy headers can significantly reduce the impact of successful injections by restricting the sources from which scripts are allowed to load and execute, thereby neutralizing many client-side attacks even if they bypass initial input filters. Regular security audits and code reviews focusing on data flow between user inputs and HTML outputs are essential to prevent similar vulnerabilities in future development cycles.