CVE-2016-1211 in Web Mailing List
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Epoch Web Mailing List 0.31 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 01/03/2019
The vulnerability identified as CVE-2016-1211 represents a critical cross-site scripting flaw within Epoch Web Mailing List version 0.31 and earlier installations. This issue falls under the well-established CWE-79 category of Cross-Site Scripting, which fundamentally compromises the integrity of web applications by allowing malicious actors to inject client-side scripts into web pages viewed by other users. The vulnerability specifically affects the mailing list management system, which serves as a web-based interface for managing email distribution lists and related functionalities.
The technical nature of this vulnerability stems from insufficient input validation and output encoding mechanisms within the Epoch Web Mailing List application. Attackers can exploit this weakness through unspecified vectors that likely involve form submissions, URL parameters, or user-controllable data fields within the web interface. The flaw allows remote threat actors to inject arbitrary web scripts or HTML content that executes in the context of other users' browsers when they access affected pages. This creates a persistent threat where malicious code can be stored and executed whenever legitimate users interact with the compromised application, potentially leading to session hijacking, data theft, or further exploitation of the victim's browser environment.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable sophisticated attack chains within the targeted environment. According to ATT&CK framework techniques, this vulnerability maps to T1059.007 for script execution and T1566 for credential harvesting through social engineering. Attackers can leverage this weakness to establish persistent access by injecting malicious scripts that capture user credentials, redirect traffic to phishing sites, or create backdoor access points. The vulnerability's remote nature means that exploitation does not require local system access, making it particularly dangerous for web applications that serve multiple users. Organizations utilizing this mailing list system face potential data breaches, unauthorized access to email lists, and possible compromise of the entire web infrastructure hosting the application.
Mitigation strategies for CVE-2016-1211 should prioritize immediate application updates to versions that address the XSS vulnerability, as the original affected versions are no longer supported. Security measures must include comprehensive input validation, proper output encoding, and the implementation of Content Security Policy headers to prevent unauthorized script execution. The application should employ strict sanitization of all user inputs and ensure that any data stored or displayed in web interfaces is properly escaped to prevent script injection. Organizations should also implement regular security assessments and vulnerability scanning to identify similar weaknesses in their web applications. Additionally, network monitoring should be enhanced to detect suspicious traffic patterns that might indicate exploitation attempts, and user education regarding phishing and social engineering attacks remains crucial for comprehensive defense. The vulnerability demonstrates the critical importance of maintaining up-to-date software and implementing robust security controls to prevent exploitation of known weaknesses in web applications.