CVE-2023-49276 Explained : Impact and Mitigation
Get insights into CVE-2023-49276, a vulnerability in uptime-kuma allowing attribute injection and XSS attacks. Learn about impact, affected versions, and mitigation steps.
A detailed overview of CVE-2023-49276 highlighting the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2023-49276
This section provides insights into the attribute injection leading to XSS vulnerability in uptime-kuma.
What is CVE-2023-49276?
The CVE-2023-49276 vulnerability is a result of attribute injection in uptime-kuma, an open-source self-hosted monitoring tool. In affected versions, the Google Analytics element is susceptible to Attribute Injection, which can lead to Cross-Site-Scripting (XSS) attacks.
The Impact of CVE-2023-49276
The vulnerability allows attackers to inject malicious scripts, potentially compromising user data, sessions, or performing unauthorized actions within the application.
Technical Details of CVE-2023-49276
This section delves into the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
In versions of uptime-kuma from greater than or equal to 1.20.0 and less than 1.23.7, a flaw in the Google Analytics ID setting within the custom status interface allows for attribute injection, leading to XSS.
Affected Systems and Versions
The vulnerability impacts uptime-kuma versions >= 1.20.0 and < 1.23.7.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious scripts via the Google Analytics ID setting, potentially executing unauthorized code in the context of legitimate users.
Mitigation and Prevention
This section outlines immediate steps to take, long-term security practices, and the importance of patching and updates.
Immediate Steps to Take
Users are strongly advised to upgrade to version 1.23.7 or later to mitigate the vulnerability. Additionally, users should validate and sanitize user inputs to prevent attribute injection attacks.
Long-Term Security Practices
Implementing input validation and output encoding practices can help prevent XSS attacks and strengthen overall application security.
Patching and Updates
Regularly monitor for security updates and patches for uptime-kuma to address known vulnerabilities and enhance the security posture of the application.