CVE-2026-32361 in Editorial Calendar Plugin
Summary
by MITRE • 03/13/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marketing Fire Editorial Calendar editorial-calendar allows DOM-Based XSS.This issue affects Editorial Calendar: from n/a through <= 3.9.0.
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Analysis
by VulDB Data Team • 03/20/2026
This vulnerability represents a critical cross-site scripting flaw that specifically targets the web page generation process within the Marketing Fire Editorial Calendar application. The issue manifests as a DOM-based XSS vulnerability, which means that malicious script code can be injected directly into the Document Object Model of the web page, allowing attackers to execute arbitrary JavaScript in the context of the victim's browser. This particular weakness falls under the CWE-79 category of Cross-site Scripting, specifically classified as a DOM-based XSS variant where the vulnerability occurs in the client-side code rather than server-side input processing.
The technical flaw stems from inadequate input sanitization and validation during the web page generation phase of the editorial calendar application. When user-provided data is processed and rendered within the DOM structure without proper neutralization, attackers can inject malicious scripts that will execute whenever the affected page is loaded. The vulnerability is particularly concerning because it affects all versions up to and including 3.9.0, indicating a persistent issue that has not been adequately addressed in the application's codebase. The DOM-based nature of this vulnerability means that the malicious payload is executed directly within the browser's DOM environment, making it more difficult to detect and prevent compared to traditional server-side XSS attacks.
The operational impact of this vulnerability is significant as it allows attackers to perform a wide range of malicious activities including session hijacking, credential theft, data exfiltration, and redirection to malicious websites. An attacker could potentially steal user sessions, gain unauthorized access to editorial content, manipulate calendar data, or even escalate privileges within the application. The vulnerability is particularly dangerous in a marketing context where the editorial calendar likely contains sensitive business information, campaign data, and user credentials. The DOM-based nature means that even if server-side filters are in place, the client-side execution can bypass many traditional security controls. This vulnerability directly aligns with ATT&CK technique T1531 for "Run-time Process Injection" and can be leveraged for credential access through session manipulation.
Mitigation strategies should focus on implementing comprehensive input validation and sanitization at multiple layers of the application architecture. The primary fix involves proper neutralization of user input before it is rendered in the DOM, utilizing techniques such as HTML encoding, JavaScript encoding, and proper content security policy implementation. Organizations should implement strict input validation on all parameters that are processed through the DOM, particularly those related to URL parameters and user-generated content. The application should enforce a Content Security Policy that restricts script execution and prevents unauthorized code injection. Additionally, regular security code reviews and automated static analysis should be implemented to identify similar vulnerabilities in other components of the application. The fix should also include proper version management and immediate patch deployment to address all affected versions up to 3.9.0, as recommended by industry standards for vulnerability remediation and risk mitigation.