CVE-2023-26120 : What You Need to Know

This CVE record was published on April 10, 2023, and is related to the package com.xuxueli:xxl-job. The vulnerability is classified as HTML Injection (CWE-79) and has a base severity rating of MEDIUM according to the CVSS 3.1 metrics.

Understanding CVE-2023-26120

This section delves into the details of CVE-2023-26120, outlining what the vulnerability entails and its potential impact on affected systems.

What is CVE-2023-26120?

CVE-2023-26120 affects all versions of the package com.xuxueli:xxl-job. The vulnerability allows for the successful execution of HTML uploaded payloads through specific endpoints, namely /xxl-job-admin/user/add and /xxl-job-admin/user/update.

The Impact of CVE-2023-26120

With this vulnerability, an attacker can inject malicious HTML code into the vulnerable application, potentially leading to unauthorized access, data manipulation, phishing attacks, or other security breaches.

Technical Details of CVE-2023-26120

This section provides a deeper dive into the technical aspects of CVE-2023-26120, including a description of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in com.xuxueli:xxl-job allows for the successful execution of HTML payloads, posing a risk to the integrity and confidentiality of the system where the package is deployed.

Affected Systems and Versions

The package com.xuxueli:xxl-job is affected by this vulnerability across all versions. Users of this package need to be aware of the potential risks associated with HTML injection attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading HTML payloads through specific endpoints (/xxl-job-admin/user/add and /xxl-job-admin/user/update), which are then executed within the application, enabling malicious activities.

Mitigation and Prevention

In response to CVE-2023-26120, it is crucial to take immediate steps to mitigate the risk and prevent potential exploitation of the vulnerability.

Immediate Steps to Take

Update: Check for any security patches or updates provided by the package maintainer to address this vulnerability.
Restrict User Input: Implement input validation procedures to prevent the upload and execution of malicious HTML payloads.
Monitor System Activity: Regularly monitor system logs and user activity for any suspicious behavior that may indicate exploitation attempts.

Long-Term Security Practices

Security Training: Educate developers and system administrators on secure coding practices and the risks associated with HTML injection vulnerabilities.
Regular Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities proactively.
Security Best Practices: Follow industry standards and best practices for secure web application development to minimize the risk of similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and updates from the package maintainer. Apply patches promptly to ensure that your systems are protected against known vulnerabilities like CVE-2023-26120.