CVE-2021-44266 Explained : Impact and Mitigation
Learn about CVE-2021-44266, a cross-site scripting (XSS) vulnerability in GUnet Open eClass (openeclass) before version 3.12.2. Understand the impact, affected systems, exploitation method, and mitigation steps.
GUnet Open eClass (aka openeclass) before 3.12.2 allows XSS via the modules/auth/formuser.php auth parameter.
Understanding CVE-2021-44266
This CVE involves a cross-site scripting (XSS) vulnerability in GUnet Open eClass, potentially exploited through a specific authentication parameter.
What is CVE-2021-44266?
The CVE-2021-44266 vulnerability exists in GUnet Open eClass (openeclass) versions prior to 3.12.2, permitting XSS attacks via the modules/auth/formuser.php auth parameter.
The Impact of CVE-2021-44266
The vulnerability may allow malicious actors to execute arbitrary scripts within a user's browser, leading to potential theft of sensitive data or unauthorized actions on behalf of the user.
Technical Details of CVE-2021-44266
The following section provides more technical insights into the vulnerability.
Vulnerability Description
GUnet Open eClass (openeclass) versions before 3.12.2 are susceptible to cross-site scripting (XSS) attacks due to inadequate input validation of the auth parameter within the formuser.php module.
Affected Systems and Versions
- Affected versions: GUnet Open eClass (openeclass) before 3.12.2
- Systems: All systems using the vulnerable versions of the software
Exploitation Mechanism
The vulnerability can be exploited by injecting malicious scripts into the auth parameter of the formuser.php module, tricking the application into executing unauthorized code within users' browsers.
Mitigation and Prevention
To safeguard systems from CVE-2021-44266, follow the mitigation strategies detailed below.
Immediate Steps to Take
- Apply the latest security patches provided by the software vendor.
- Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
- Educate users on recognizing and avoiding suspicious links that may trigger XSS vulnerabilities.
Long-Term Security Practices
- Regularly monitor security advisories for updates on vulnerabilities and patches.
- Conduct periodic security assessments and penetration testing to identify and address potential security loopholes.
Patching and Updates
Ensure timely application of software updates and security patches to address known vulnerabilities and enhance the security posture of the system.