CVE-2014-1607 in Drupal
Summary
by MITRE
** DISPUTED ** Cross-site scripting (XSS) vulnerability in the EventCalendar module for Drupal 7.14 allows remote attackers to inject arbitrary web script or HTML via the year parameter to eventcalander/. NOTE: this issue has been disputed by the Drupal Security Team; it may be site-specific. If so, then this CVE will be REJECTed in the future.
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Analysis
by VulDB Data Team • 04/23/2025
The CVE-2014-1607 vulnerability represents a cross-site scripting flaw discovered in the EventCalendar module for Drupal version 7.14, which could potentially allow remote attackers to execute malicious web scripts or HTML code within the context of affected websites. This type of vulnerability falls under the broader category of web application security weaknesses that specifically target user input handling and output sanitization mechanisms. The vulnerability manifests through the year parameter within the eventcalander/ endpoint, indicating that the module fails to properly validate or sanitize user-supplied data before incorporating it into web page responses.
The technical nature of this flaw aligns with CWE-79, which specifically addresses Cross-Site Scripting vulnerabilities in web applications. This weakness occurs when an application includes untrusted data in a new web page without proper validation or escaping, allowing attackers to inject malicious scripts that execute in the context of other users' browsers. The EventCalendar module's failure to properly process the year parameter demonstrates a classic input validation failure that enables attackers to bypass normal security controls and inject arbitrary code into web pages served to unsuspecting users.
From an operational perspective, this vulnerability could enable attackers to perform various malicious activities including session hijacking, credential theft, data exfiltration, or defacement of affected websites. The remote nature of the attack means that threat actors do not require physical access to the system or local network privileges to exploit this weakness. The fact that this vulnerability specifically affects Drupal 7.14 indicates that it likely represents a regression or oversight in the module's development lifecycle, where proper security testing and input sanitization procedures were not adequately implemented or reviewed.
The disputed status of this CVE by the Drupal Security Team suggests that there may be specific conditions or configurations that make this vulnerability exploitable only in certain environments or under particular circumstances. This site-specific nature could indicate that the vulnerability requires additional prerequisites such as specific module configurations, user roles, or environmental factors that must be present for successful exploitation. The potential rejection of this CVE in future updates reflects the security team's assessment that the reported vulnerability may not represent a universal threat across all installations of the EventCalendar module.
Organizations utilizing the EventCalendar module should implement immediate mitigations including updating to patched versions of the module, implementing proper input validation at the application level, and considering web application firewalls as additional protective layers. The ATT&CK framework's T1211 technique for exploitation of web application vulnerabilities would be relevant for threat actors attempting to leverage this weakness, while defensive measures should focus on input sanitization and output encoding as primary protection strategies. Regular security audits and vulnerability assessments should be conducted to identify similar weaknesses in other modules and ensure comprehensive protection of Drupal-based web applications against similar cross-site scripting threats.