CVE-2014-1648 in Messaging Gateway
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in brightmail/setting/compliance/DlpConnectFlow$view.flo in the management console in Symantec Messaging Gateway 10.x before 10.5.2 allows remote attackers to inject arbitrary web script or HTML via the displayTab parameter.
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Analysis
by VulDB Data Team • 05/11/2026
The CVE-2014-1648 vulnerability represents a critical cross-site scripting flaw discovered in Symantec Messaging Gateway version 10.x prior to 10.5.2. This vulnerability specifically affects the management console interface within the brightmail component, which is responsible for compliance and data loss prevention functionality. The issue resides in the DlpConnectFlow$view.flo page that handles displayTab parameter processing, creating an avenue for malicious actors to execute arbitrary web scripts within the context of authenticated users' browsers. The vulnerability stems from insufficient input validation and sanitization of user-supplied parameters, allowing attackers to inject malicious content that gets executed when the page renders. This particular flaw falls under CWE-79 which categorizes cross-site scripting vulnerabilities as weaknesses in input validation and output encoding. The attack vector is particularly concerning as it targets the management console, which typically requires elevated privileges and provides access to sensitive email security configurations, making it a prime target for attackers seeking to compromise email infrastructure.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing script code within the displayTab parameter and delivers it to a victim who possesses valid credentials to access the Symantec Messaging Gateway management console. When the victim clicks the malicious link or navigates to the crafted URL, the browser executes the injected script within the context of the authenticated session. This allows attackers to potentially steal session cookies, modify email security policies, access sensitive configuration data, or redirect users to malicious sites. The vulnerability is classified as a stored XSS when the injected content is permanently stored on the server and displayed to other users, or as a reflected XSS when the malicious content is reflected back from the server to the user's browser. The impact is amplified because the management console typically operates with administrative privileges, potentially allowing attackers to gain full control over the email security infrastructure. This vulnerability directly aligns with ATT&CK technique T1059.007 which covers the use of scripting languages for execution, and T1566 which encompasses social engineering attacks through malicious links.
The operational impact of CVE-2014-1648 extends beyond simple script injection, as it represents a significant threat to email security infrastructure integrity and confidentiality. Organizations using affected Symantec Messaging Gateway versions face potential data breaches, unauthorized configuration changes, and possible complete compromise of their email security controls. The vulnerability affects the core compliance and data loss prevention functionality, which could lead to unauthorized access to sensitive email content, bypassing security controls designed to prevent data exfiltration. Attackers could leverage this vulnerability to monitor email traffic, modify security policies, or redirect email flows to malicious servers. The risk is particularly severe for enterprises that rely heavily on email security for compliance with regulations such as GDPR, HIPAA, or SOX, as the vulnerability could potentially expose sensitive data or compromise audit trails. Organizations may also face regulatory penalties and compliance violations if the vulnerability leads to unauthorized data access or breaches. The attack surface is further expanded due to the management console's role in configuring email security policies, which could allow attackers to disable security features or create backdoors. This vulnerability demonstrates the critical importance of input validation in web applications and the potential consequences of insufficient security controls in administrative interfaces. The flaw represents a significant weakness in the application's defense-in-depth strategy and highlights the need for comprehensive security testing of administrative interfaces. Organizations should prioritize patching this vulnerability and implementing additional monitoring to detect potential exploitation attempts. The vulnerability also underscores the importance of following secure coding practices such as those outlined in OWASP Top 10 and NIST Cybersecurity Framework, particularly in protecting administrative interfaces from common web application attacks.