CVE-2026-85418 in Orbit Fox Plugin
Summary
by MITRE • 09/09/2026
The Orbit Fox: Duplicate Page, Menu Icons, SVG Support, Cookie Notice, Custom Fonts & More WordPress plugin before 3.0.9 does not validate a user-supplied HTML tag name in one of its Beaver Builder widgets before echoing it into the rendered markup, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor views the affected page.
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Analysis
by VulDB Data Team • 09/09/2026
The vulnerability identified within the Orbit Fox: Duplicate Page, Menu Icons, SVG Support, Cookie Notice, Custom Fonts & More WordPress plugin prior to version 3.0.9 represents a significant security flaw rooted in insufficient input validation and output encoding mechanisms. This specific weakness is classified under CWE-79, commonly known as Cross-Site Scripting (XSS), specifically reflecting an Improper Neutralization of Input During Web Page Generation scenario where the application fails to properly sanitize user-supplied data before including it in web pages. The core technical flaw resides within one of the plugin's Beaver Builder widgets, which processes HTML tag names provided by users without adequate verification or escaping. When a contributor-level user or higher submits an input containing malicious script payloads disguised as valid HTML tags, the application directly echoes this unvalidated content into the rendered markup. This lack of sanitization allows attackers to inject arbitrary JavaScript code that executes in the context of any visitor viewing the affected page, thereby bypassing standard browser security policies such as the same-origin policy and gaining unauthorized access to sensitive information or performing actions on behalf of the victim user.
From an operational perspective, this vulnerability poses a severe risk due to its low privilege requirement for exploitation. In typical WordPress environments, contributor-level users have limited capabilities compared to administrators but are often trusted enough to create content that is publicly visible. By leveraging this flaw, an attacker with such access can execute persistent or reflected cross-site scripting attacks without needing administrative credentials. The impact extends beyond simple defacement; attackers can steal session cookies, hijack user sessions, perform actions on behalf of the victim within the WordPress dashboard if they are logged in, or redirect users to malicious phishing sites. This undermines the integrity and confidentiality of both the website content and its user base, potentially leading to broader system compromise if combined with other vulnerabilities or social engineering tactics. The presence of this flaw highlights a critical gap in how third-party plugins handle dynamic content generation within page builder ecosystems like Beaver Builder, where complex interactions between user input and server-side rendering occur frequently.
To mitigate this vulnerability, immediate action is required by updating the Orbit Fox plugin to version 3.0.9 or later, which addresses these validation issues through improved sanitization routines. For organizations unable to update immediately due to compatibility concerns with other plugins, implementing a Web Application Firewall (WAF) can provide an additional layer of defense by filtering out malicious payloads based on known attack signatures associated with XSS attempts. Furthermore, developers should adhere strictly to secure coding practices mandated by industry standards such as OWASP Top 10, specifically focusing on input validation and output encoding strategies. It is crucial that all user-supplied data intended for HTML context be encoded using appropriate functions like htmlspecialchars in PHP environments before being rendered into the DOM. Additionally, implementing Content Security Policy headers can help mitigate the impact of any successful XSS attacks by restricting the sources from which scripts are allowed to execute, thereby reducing the effectiveness of injected payloads even if they bypass initial validation checks. Regular security audits and code reviews focusing on data flow within page builder widgets will further strengthen resilience against such injection-based threats aligned with ATT&CK techniques related to client-side script insertion.