CVE-2026-57368 in Jobmonster Plugin
Summary
by MITRE • 07/13/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme Jobmonster noo-jobmonster allows Reflected XSS.This issue affects Jobmonster: from n/a through <= 4.8.5.
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Analysis
by VulDB Data Team • 07/13/2026
This cross-site scripting vulnerability resides within the NooTheme Jobmonster WordPress plugin, specifically impacting versions up to and including 4.8.5. The flaw manifests as improper neutralization of input during web page generation, creating a reflected XSS attack vector that allows remote attackers to inject malicious scripts into web pages viewed by other users. The vulnerability occurs when user-supplied input is not adequately sanitized or encoded before being rendered in HTML output contexts, enabling attackers to execute arbitrary JavaScript code within the victim's browser session.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the plugin's core functionality. When malicious input is passed through HTTP request parameters and subsequently processed without proper sanitization, it gets reflected back to users in the web page content. This reflection occurs because the application fails to properly escape special characters such as angle brackets, quotes, and script tags that are fundamental to HTML and JavaScript execution. The vulnerability maps directly to CWE-79: Improper Neutralization of Input During Web Page Generation, which is a well-documented weakness in web application security.
The operational impact of this reflected XSS vulnerability extends beyond simple script execution, potentially enabling attackers to hijack user sessions, deface websites, steal sensitive information, or redirect users to malicious domains. An attacker could craft a malicious URL containing encoded JavaScript payloads that, when clicked by an authenticated user, would execute within their browser context. This allows for session cookie theft through document.cookie access, which can lead to complete account compromise. The vulnerability also aligns with ATT&CK technique T1566.001: Phishing, as attackers could leverage this flaw to create convincing phishing campaigns that appear legitimate within the context of the job portal.
Mitigation strategies should prioritize immediate remediation through plugin updates to version 4.8.6 or later where the vulnerability has been addressed. Administrators must implement comprehensive input validation and output encoding practices throughout the application, ensuring all user-supplied data is properly escaped before rendering in HTML contexts. The implementation of Content Security Policy headers can provide additional defense-in-depth measures by restricting script execution sources. Additionally, regular security audits and penetration testing should be conducted to identify similar input handling vulnerabilities, while web application firewalls may offer temporary protection against known attack patterns. System administrators should also consider implementing proper logging and monitoring for suspicious user activities that may indicate exploitation attempts.