CVE-2018-16379 in Ogma
Summary
by MITRE
Ogma CMS 0.4 Beta has XSS via the "Footer Text footer" field on the "Theme/Theme Options" screen.
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Analysis
by VulDB Data Team • 05/06/2023
CVE-2018-16379 represents a cross-site scripting vulnerability discovered in Ogma CMS version 0.4 Beta that specifically targets the "Footer Text footer" field within the "Theme/Theme Options" administrative interface. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws. The flaw occurs when user-supplied input from the footer text field is not properly sanitized or escaped before being rendered back to users in the web interface, creating an opportunity for malicious actors to inject arbitrary JavaScript code.
The technical exploitation of this vulnerability requires an attacker to navigate to the Theme/Theme Options screen within the CMS administration panel and submit malicious script code within the Footer Text footer field. When other users or administrators view this page, the malicious JavaScript executes in their browser context, potentially leading to session hijacking, credential theft, or redirection to malicious sites. This vulnerability specifically affects the server-side rendering process where user input is directly embedded into HTML output without appropriate sanitization measures. The attack vector is particularly concerning as it operates within the administrative context of the CMS, potentially allowing attackers to escalate privileges or gain unauthorized access to sensitive administrative functions.
The operational impact of this vulnerability extends beyond simple script execution as it can enable attackers to establish persistent access to the CMS administration interface. An attacker who successfully exploits this vulnerability could modify footer content to include malicious links, steal administrator cookies, or even inject backdoors that maintain access across sessions. This type of vulnerability directly violates the principle of least privilege and can compromise the integrity of the entire content management system. The vulnerability also creates potential for cascading security issues where compromised administrative sessions could be leveraged to access other systems or data within the organization's infrastructure.
Organizations using Ogma CMS 0.4 Beta should implement immediate mitigations including input validation and output encoding for all user-supplied content within administrative interfaces. The recommended approach involves implementing strict sanitization of all input fields, particularly those used for text display in administrative panels, and ensuring proper HTML escaping before rendering any user content. Security measures should include implementing Content Security Policy headers to prevent unauthorized script execution, regular security auditing of administrative interfaces, and mandatory input validation for all fields that accept user data. Additionally, organizations should consider implementing web application firewalls to detect and block suspicious script injection attempts. This vulnerability highlights the importance of following secure coding practices as outlined in the OWASP Top Ten and aligns with ATT&CK technique T1059.007 for scripting languages, emphasizing the need for proper input sanitization and output encoding in web applications to prevent XSS attacks.