CVE-2024-6877 in Panel
Summary
by MITRE • 09/18/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Eliz Software Panel allows Reflected XSS.
This issue affects Panel: before v2.3.24.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 06/04/2026
The vulnerability identified as CVE-2024-6877 represents a critical cross-site scripting flaw within the Eliz Software Panel application that has been classified under CWE-79 - Improper Neutralization of Input During Web Page Generation. This weakness specifically manifests as a reflected cross-site scripting vulnerability that occurs when the application fails to properly sanitize user-supplied input before incorporating it into dynamically generated web pages. The vulnerability exists in versions of the Panel software prior to v2.3.24, indicating that organizations running older iterations remain exposed to potential exploitation. The reflected nature of this XSS vulnerability means that malicious input is immediately reflected back to the user through the application's response, making it particularly dangerous as it requires no persistent storage of malicious code on the server.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the web application's processing pipeline. When users provide input through various interface elements or API endpoints, the Panel application does not sufficiently sanitize this data before rendering it within HTML contexts. This failure creates opportunities for attackers to inject malicious scripts that execute in the context of other users' browsers. The vulnerability specifically impacts web page generation processes where user input is directly incorporated into dynamic content without proper HTML entity encoding or other sanitization measures. Attackers can craft malicious payloads that exploit this weakness by manipulating URL parameters, form fields, or other user-controllable inputs to inject script code that will execute when other users view the affected pages.
The operational impact of CVE-2024-6877 extends beyond simple data theft or session hijacking, as reflected XSS vulnerabilities can enable more sophisticated attacks within the context of the compromised application. An attacker could potentially leverage this vulnerability to steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or even establish persistent backdoors within the application's interface. The vulnerability's presence in the Panel software creates a vector for attackers to compromise user sessions and potentially escalate privileges within the application's access controls. Organizations may experience unauthorized access to sensitive data, disruption of services, and potential compliance violations depending on the nature of information processed by the affected system. The reflected nature of the vulnerability means that exploitation can occur immediately upon delivery of the malicious payload through phishing emails, compromised links, or other social engineering techniques.
Mitigation strategies for CVE-2024-6877 should prioritize immediate software updates to version 2.3.24 or later, which contains the necessary patches to address the input sanitization deficiencies. Organizations should implement comprehensive input validation mechanisms that properly encode or escape all user-supplied data before rendering it within web pages, following the principle of least privilege in data handling. The application should employ proper Content Security Policy headers to limit script execution contexts and implement proper output encoding for all dynamic content generation. Security teams should conduct thorough code reviews focusing on input handling and output encoding practices, particularly examining areas where user input flows into HTML contexts. Network monitoring should be enhanced to detect suspicious traffic patterns that may indicate exploitation attempts, and regular security assessments should be performed to identify similar vulnerabilities in other components of the application stack. Additionally, implementing web application firewalls and security scanning tools can provide additional layers of protection against exploitation attempts targeting this and similar vulnerabilities. The ATT&CK framework categorizes this vulnerability under T1059.007 - Command and Scripting Interpreter: JavaScript, highlighting the potential for attackers to leverage JavaScript execution capabilities to compromise affected systems.