CVE-2021-36747 : Vulnerability Insights and Analysis
Learn about CVE-2021-36747, a vulnerability in Blackboard Learn through 9.1 allowing XSS attacks via the Feedback to Learner form. Find out the impact, affected systems, and mitigation steps.
Blackboard Learn through 9.1 allows XSS by an authenticated user via the Feedback to Learner form.
Understanding CVE-2021-36747
This CVE-2021-36747 vulnerability affects Blackboard Learn through version 9.1, enabling cross-site scripting (XSS) attacks by authenticated users through the Feedback to Learner form.
What is CVE-2021-36747?
The CVE-2021-36747 vulnerability in Blackboard Learn through 9.1 allows authenticated users to execute XSS attacks via the Feedback to Learner form, potentially leading to sensitive data exposure and unauthorized actions.
The Impact of CVE-2021-36747
The impact of CVE-2021-36747 includes the risk of attackers executing malicious scripts within the context of the affected web application, leading to potential data theft, session hijacking, and unauthorized access to user information.
Technical Details of CVE-2021-36747
The technical details of CVE-2021-36747 include:
Vulnerability Description
The vulnerability enables authenticated users to inject and execute arbitrary scripts through the Feedback to Learner form.
Affected Systems and Versions
Blackboard Learn versions up to 9.1 are affected by this vulnerability.
Exploitation Mechanism
An authenticated user can exploit this vulnerability by submitting crafted input through the Feedback to Learner form, leading to the execution of malicious scripts.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-36747, consider the following steps:
Immediate Steps to Take
- Upgrade Blackboard Learn to a patched version that addresses the XSS vulnerability.
- Regularly monitor and review user feedback submitted through the platform.
Long-Term Security Practices
- Implement input validation mechanisms to sanitize user input and prevent XSS attacks.
- Educate users on safe browsing practices and awareness of potential security threats.
Patching and Updates
Stay informed about security updates and patches released by Blackboard Learn and promptly apply them to ensure protection against known vulnerabilities.