CVE-2012-2575 in SurgeMail
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in NetWin SurgeMail 6.0a4 allows remote attackers to inject arbitrary web script or HTML via the SRC attribute of an IFRAME element in the body of an HTML e-mail message.
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Analysis
by VulDB Data Team • 09/29/2025
The vulnerability identified as CVE-2012-2575 represents a critical cross-site scripting flaw within NetWin SurgeMail version 6.0a4, a widely deployed email server solution. This security weakness resides in the email client's handling of HTML content, specifically when processing iframe elements within email messages. The vulnerability operates by exploiting the email client's insufficient input validation mechanisms, allowing malicious actors to craft specially formatted emails that contain iframe tags with malicious source attributes. When these emails are rendered within the vulnerable email client interface, the embedded scripts execute in the context of the user's browser session, potentially compromising the entire email environment.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize or escape user-controllable input fields within HTML email content. The SRC attribute of iframe elements serves as the primary attack vector, as it accepts arbitrary URLs or script references that are directly rendered without adequate security filtering. This flaw aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities where untrusted data is incorporated into web pages without proper validation or sanitization. The vulnerability demonstrates a classic case of insufficient output escaping where user-provided HTML content bypasses security controls designed to prevent malicious script execution. Attackers can leverage this weakness by embedding malicious JavaScript code within iframe source attributes, potentially executing commands with the privileges of the authenticated user.
The operational impact of this vulnerability extends beyond simple script injection, as it creates a persistent threat vector for attackers seeking to compromise email client users. When victims open malicious emails containing crafted iframe elements, the embedded scripts can execute in the context of the email client's security domain, potentially leading to session hijacking, credential theft, or further exploitation of the underlying system. This vulnerability particularly affects organizations relying on NetWin SurgeMail for email services, as it provides attackers with a method to bypass traditional email security measures and directly target end-user browsers. The threat model aligns with ATT&CK technique T1566, which covers spearphishing attacks using malicious email content, and T1059, which involves the execution of malicious code through compromised email clients. The vulnerability's remote exploitability means that attackers can compromise users without requiring physical access to the target system, making it particularly dangerous in enterprise environments.
Mitigation strategies for CVE-2012-2575 should prioritize immediate patching of the affected NetWin SurgeMail version, as vendors typically provide security updates addressing such vulnerabilities. Organizations should implement comprehensive email filtering solutions that sanitize HTML content before delivery, particularly focusing on iframe element handling and source attribute validation. Network administrators should consider deploying web application firewalls that can detect and block malicious iframe references, while implementing strict content security policies that prevent execution of embedded scripts. Additionally, user education programs should emphasize the importance of avoiding suspicious email content and maintaining updated security software. The implementation of proper input validation mechanisms within email client applications, including HTML sanitization libraries and attribute whitelisting for iframe elements, provides a robust defense against similar vulnerabilities. Organizations should also consider network segmentation and monitoring solutions that can detect anomalous script execution patterns indicative of XSS attacks. Regular vulnerability assessments and penetration testing should include evaluation of email client security configurations to identify potential XSS attack vectors and ensure adequate protection against such threats.