CVE-2021-44565 : What You Need to Know

A Cross Site Scripting (XSS) vulnerability in RosarioSIS before 7.6.1 allows remote attackers to inject arbitrary JavaScript or HTML, impacting Markdown input fields.

Understanding CVE-2021-44565

A crucial XSS vulnerability in RosarioSIS before version 7.6.1 enables attackers to execute malicious scripts via specific functions, posing a risk to affected systems.

What is CVE-2021-44565?

The vulnerability stems from insecure data processing in the xss_clean function within classes/Security.php, facilitating the injection of harmful JavaScript or HTML code by remote attackers.

The Impact of CVE-2021-44565

This vulnerability permits malicious users to compromise the integrity of RosarioSIS installations by executing arbitrary scripts or injecting malicious content, particularly affecting all Markdown input fields.

Technical Details of CVE-2021-44565

In-depth analysis of the technical aspects of the vulnerability sheds light on its behavior and implications.

Vulnerability Description

The XSS vulnerability in RosarioSIS pre-7.6.1 arises from inadequate sanitization in the xss_clean function, enabling potential attackers to embed harmful code within the system.

Affected Systems and Versions

Affected Systems: RosarioSIS before version 7.6.1
Affected Components: All Markdown input fields within the vulnerable versions

Exploitation Mechanism

Attackers exploit the vulnerability by injecting malicious JavaScript or HTML code through the xss_clean function, allowing them to manipulate the application's behavior and compromise data integrity.

Mitigation and Prevention

Mitigation strategies and best practices to safeguard systems against CVE-2021-44565.

Immediate Steps to Take

Update to the latest version: Ensure RosarioSIS is upgraded to at least version 7.6.1 to patch the vulnerability.
Implement input validation: Enforce strict input validation mechanisms to prevent unauthorized code execution.

Long-Term Security Practices

Regular security audits: Conduct periodic security assessments to identify and address vulnerabilities promptly.
Security awareness training: Educate users on secure coding practices to mitigate the risk of XSS attacks.

Patching and Updates

Stay informed: Monitor security advisories and apply patches promptly to protect systems from known vulnerabilities.