CVE-2026-93618 in JetTricks
Summary
by MITRE • 09/23/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock. Jetimpex Inc. JetTricks allows Stored XSS.
This issue affects JetTricks: from n/a through 2.0.1.
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Analysis
by VulDB Data Team • 09/23/2026
The identified security flaw represents a classic instance of improper neutralization of input during web page generation, specifically categorized under the Cross-Site Scripting (XSS) vulnerability class. This particular implementation manifests as a Stored XSS attack vector within JetTricks, a WordPress plugin developed by Crocoblock and distributed through Jetimpex Inc. The vulnerability exists in versions ranging from no specific lower bound up to version 2.0.1 inclusive. Unlike reflected XSS attacks where malicious scripts are executed immediately via user input such as URL parameters, stored XSS vulnerabilities involve the persistence of malicious content on the target server. This means that once an attacker successfully injects a script payload into the application's data storage, it is served to every subsequent user who views the affected page or feature, thereby amplifying the potential impact significantly compared to one-time execution scenarios.
From a technical perspective, the root cause lies in the failure of JetTricks to properly sanitize or encode user-supplied input before rendering it within HTML responses. When an application accepts data from users and stores it without adequate validation, such as checking for special characters like angle brackets, ampersands, quotes, or other delimiters that have meaning in HTML and JavaScript contexts, the browser interprets these inputs as executable code rather than plain text. In the context of JetTricks, this likely occurs within areas where users can create content, modify settings, or interact with dynamic elements provided by the plugin. If an administrator or a user with sufficient privileges injects malicious JavaScript into fields that are later displayed to other visitors without encoding, the browser will execute the script in the security context of the website. This allows the attacker to bypass same-origin policies and perform actions on behalf of the victim user.
The operational impact of this vulnerability is severe due to its persistent nature. An attacker can exploit this flaw to steal session cookies, which are critical for maintaining authenticated sessions with web applications. By accessing these tokens, an adversary can hijack active user sessions, effectively impersonating legitimate users without needing their passwords. This capability extends to performing unauthorized actions within the application, such as modifying settings, deleting content, or creating new administrative accounts if the compromised account has elevated privileges. Furthermore, stored XSS can be used to deface websites by altering displayed content or redirecting users to malicious sites designed for phishing attacks. The persistence of the payload means that even after the initial injection is discovered and removed from the input field, previously cached pages may still serve the malicious script until caches are cleared or the vulnerability is patched across all served instances.
In terms of industry-standard classification frameworks, this vulnerability aligns with CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). More specifically, it falls under the subcategory of Stored XSS where the malicious script is permanently stored on target servers. Within the MITRE ATT&CK framework for enterprise security, this behavior corresponds to techniques such as T1059 Command and Scripting Interpreter: JavaScript or T1189 Drive-by Client Side Web Traffic if used in conjunction with other vectors, but primarily it facilitates lateral movement and credential access through session hijacking. The persistence aspect also relates to the concept of maintaining presence within a compromised environment, although XSS is typically considered an initial access or execution technique rather than persistent backdoor installation unless combined with server-side compromises.
To mitigate this vulnerability, immediate action must be taken by updating JetTricks to version 2.0.2 or any later release where the issue has been resolved by Crocoblock. Developers and administrators should ensure that all user inputs are strictly validated against a whitelist of allowed characters before being stored in databases. Additionally, output encoding is critical; data retrieved from storage must be encoded appropriately for its context within HTML documents to prevent browser interpretation as code. Implementing Content Security Policy headers can also provide an additional layer of defense by restricting the sources from which scripts can be loaded and executed. Regular security audits and penetration testing should be conducted on WordPress plugins, particularly those that handle significant user-generated content or administrative configurations, to identify similar input handling flaws before they are exploited in production environments.