CVE-2021-25791 Explained : Impact and Mitigation

This article provides details about CVE-2021-25791, a vulnerability in the "Update Profile" module of the Online Doctor Appointment System 1.0 that allows attackers to execute arbitrary web scripts or HTML.

Understanding CVE-2021-25791

This section highlights the impact, technical details, and mitigation strategies related to CVE-2021-25791.

What is CVE-2021-25791?

CVE-2021-25791 refers to multiple stored cross-site scripting (XSS) vulnerabilities in the "Update Profile" module of the Online Doctor Appointment System 1.0. Attackers with authenticated access can exploit these flaws by injecting malicious payloads in specific text fields.

The Impact of CVE-2021-25791

The impact of CVE-2021-25791 includes allowing authenticated attackers to execute arbitrary web scripts or HTML within the system. This could lead to unauthorized data disclosure, account takeover, or other malicious activities.

Technical Details of CVE-2021-25791

This section delves into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper input validation within the "Update Profile" module, enabling attackers to insert malicious scripts or HTML code in the First Name, Last Name, and Address text fields.

Affected Systems and Versions

Online Doctor Appointment System 1.0 is specifically affected by these vulnerabilities.

Exploitation Mechanism

Attackers with authenticated access can leverage crafted payloads in the mentioned text fields to execute arbitrary web scripts or HTML, compromising the system's integrity.

Mitigation and Prevention

This section outlines immediate steps and long-term security practices to mitigate the risks associated with CVE-2021-25791.

Immediate Steps to Take

Administrators should restrict user input in the affected fields, implement input validation mechanisms, and sanitize user data to prevent XSS attacks.

Long-Term Security Practices

Regular security audits, user awareness training, prompt patching of software vulnerabilities, and monitoring for suspicious activities are essential for long-term security.

Patching and Updates

Developers should release patches that address the XSS vulnerabilities in the "Update Profile" module of the Online Doctor Appointment System 1.0 to safeguard against exploitation.