CVE-2025-26558 in Aparat Responsive Plugin
Summary
by MITRE • 02/13/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in mkkmail Aparat Responsive allows DOM-Based XSS. This issue affects Aparat Responsive: from n/a through 1.3.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 02/13/2025
The vulnerability identified as CVE-2025-26558 represents a critical cross-site scripting weakness within the mkkmail Aparat Responsive web application framework. This flaw manifests as an improper neutralization of input during web page generation, specifically enabling DOM-based cross-site scripting attacks that can compromise user sessions and execute malicious code within the victim's browser context. The vulnerability exists in versions of the Aparat Responsive framework ranging from an unspecified initial version through and including version 1.3, indicating a broad affected scope that likely encompasses numerous deployments across different organizations and environments.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization mechanisms within the web application's DOM manipulation processes. When user-supplied data is improperly handled during dynamic content generation, attackers can inject malicious scripts that execute in the context of the victim's browser session. This DOM-based XSS variant is particularly dangerous because it leverages the Document Object Model directly rather than relying on reflected or stored data, making it more difficult to detect and prevent through traditional security measures. The vulnerability allows attackers to manipulate the DOM structure and execute arbitrary JavaScript code, potentially leading to session hijacking, credential theft, or redirection to malicious sites.
The operational impact of this vulnerability extends beyond simple script execution, as it creates a persistent security risk for all users interacting with affected systems. Attackers can exploit this weakness to steal session cookies, modify page content, redirect users to phishing sites, or perform actions on behalf of authenticated users. The vulnerability's presence in the Aparat Responsive framework suggests that organizations relying on this platform for email services, content management, or web application delivery face significant exposure to these attacks. Given that XSS vulnerabilities often serve as entry points for more sophisticated attacks, this flaw could enable adversaries to establish persistent access or escalate privileges within compromised environments, particularly in scenarios where users have elevated permissions.
Organizations should immediately implement comprehensive mitigation strategies to address this vulnerability, including deploying proper input validation and output encoding mechanisms throughout the application's codebase. The implementation of Content Security Policy headers, proper sanitization of user inputs, and regular security code reviews can significantly reduce the attack surface. Additionally, the affected versions of Aparat Responsive should be updated to the latest available patches, and security teams should conduct thorough vulnerability assessments to identify any potential exploitation attempts. This vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws, and follows attack patterns documented in the ATT&CK framework under the web application attack category, particularly focusing on DOM-based XSS techniques that leverage browser-side script execution capabilities.