CVE-2015-1057 in e107
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in usersettings.php in e107 2.0.0 allows remote attackers to inject arbitrary web script or HTML via the "Real Name" value.
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Analysis
by VulDB Data Team • 01/18/2025
The CVE-2015-1057 vulnerability represents a critical cross-site scripting flaw discovered in the e107 content management system version 2.0.0. This vulnerability specifically targets the usersettings.php script which handles user profile management functionalities. The issue arises from insufficient input validation and output sanitization mechanisms within the application's user registration and profile modification processes. Attackers can exploit this weakness by manipulating the "Real Name" field during user account creation or profile updates to inject malicious javascript code or html content that will be executed in the contexts of other users who view the affected profile information.
The technical exploitation of this vulnerability occurs through the improper handling of user-supplied data within the web application's input processing pipeline. When users enter specially crafted malicious content into the Real Name field, the application fails to adequately sanitize this input before rendering it in web pages. This failure creates an environment where attacker-controlled javascript code can be executed within the browser context of legitimate users who access the compromised profile information. The vulnerability follows the classic XSS attack pattern where malicious scripts are embedded in user-controllable input fields and subsequently executed in the browsers of other users.
From an operational impact perspective, this vulnerability poses significant risks to both user privacy and system integrity within e107 installations. Successful exploitation could enable attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or extract sensitive information from user profiles. The attack vector is particularly dangerous because it leverages legitimate user registration and profile modification workflows, making it difficult to detect and prevent through traditional security monitoring approaches. The vulnerability affects the entire user base of affected installations and could potentially lead to widespread compromise of user accounts and data breaches.
Security mitigations for CVE-2015-1057 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data processing pipeline. Organizations should immediately apply the vendor-provided security patches and updates released to address this vulnerability. Additionally, implementing proper content security policies, employing web application firewalls, and conducting regular security assessments can help prevent similar issues. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications and maps to attack techniques described in the MITRE ATT&CK framework under the web application attack patterns. System administrators should also implement regular security monitoring and user behavior analytics to detect anomalous activities that might indicate exploitation attempts.