CVE-2023-25295 in eVEWA3 Community
Summary
by MITRE • 01/17/2024
Cross Site Scripting (XSS) vulnerability in GRN Software Group eVEWA3 Community version 31 through 53, allows attackers to gain escalated privileges via crafted request to login panel.
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Analysis
by VulDB Data Team • 06/17/2025
The vulnerability CVE-2023-25295 represents a critical cross site scripting flaw within the GRN Software Group eVEWA3 Community version 31 through 53 software suite. This vulnerability exists in the authentication login panel where the application fails to properly sanitize user input, creating an avenue for malicious actors to inject malicious scripts. The flaw specifically manifests when the application processes login requests without adequate validation or encoding of user-supplied parameters, allowing attackers to manipulate the authentication flow through crafted HTTP requests.
The technical exploitation of this vulnerability follows a standard XSS attack pattern where an attacker crafts malicious input that gets executed in the context of a victim's browser session. The vulnerability is classified as a CWE-79: Cross-site Scripting vulnerability, which falls under the broader category of injection flaws in the OWASP Top Ten classification. The attack vector specifically targets the login panel functionality, making it particularly dangerous as it can be leveraged to escalate privileges or gain unauthorized access to user accounts. The vulnerability's impact is amplified by the fact that it operates at the authentication layer, potentially allowing attackers to bypass normal access controls and impersonate legitimate users.
From an operational standpoint, this vulnerability creates significant risk for organizations using affected eVEWA3 versions as it enables attackers to perform privilege escalation attacks through session hijacking or credential theft. The vulnerability can be exploited to execute malicious scripts in the victim's browser context, potentially leading to full account compromise, data exfiltration, or further lateral movement within the network. The attack requires minimal technical expertise to execute, making it particularly dangerous as it can be leveraged by both skilled and less experienced attackers. The vulnerability affects the core authentication mechanism, which means that successful exploitation could result in unauthorized access to sensitive user data, system resources, and potentially administrative functions within the application.
Mitigation strategies for CVE-2023-25295 should prioritize immediate patching of affected systems to the latest available versions of eVEWA3 Community software. Organizations should implement proper input validation and output encoding mechanisms to prevent script injection attacks, ensuring that all user-supplied data is properly sanitized before processing. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to mitigate the impact of successful XSS attempts. Security monitoring should be enhanced to detect unusual login patterns or suspicious request parameters that may indicate exploitation attempts. According to ATT&CK framework, this vulnerability maps to T1078: Valid Accounts and T1566: Phishing techniques, as attackers can leverage the XSS to obtain valid credentials and subsequently escalate privileges within the system. Organizations should also conduct comprehensive security assessments of their authentication mechanisms and implement web application firewalls to provide additional protection against such attacks. The vulnerability underscores the importance of maintaining up-to-date software versions and implementing robust input validation practices across all application components, particularly those handling user authentication.