CVE-2021-39348 : Security Advisory and Response
Learn about the CVE-2021-39348 vulnerability in the LearnPress WordPress plugin, leading to Stored Cross-Site Scripting. Take immediate action by updating to version 4.1.3.2 or newer.
This CVE-2021-39348 article provides details about the LearnPress WordPress plugin vulnerability to Stored Cross-Site Scripting (XSS) and the necessary actions to mitigate the risk.
Understanding CVE-2021-39348
On October 18, 2021, the CVE-2021-39348 vulnerability was made public by the Thinkland Security Team. The vulnerability affects the LearnPress WordPress plugin versions up to and including 4.1.3.1.
What is CVE-2021-39348?
The LearnPress WordPress plugin is susceptible to Stored Cross-Site Scripting due to inadequate escaping on the $custom_profile parameter. This flaw allows malicious users with administrative access to embed arbitrary web scripts.
The Impact of CVE-2021-39348
The impact of this vulnerability is rated medium, with a CVSS v3.1 base score of 5.5. The integrity and confidentiality of the affected systems are at risk as attackers can inject malicious scripts.
Technical Details of CVE-2021-39348
The technical aspects of the CVE-2021-39348 vulnerability provide insights into the specific aspects of the issue.
Vulnerability Description
The vulnerability stems from insufficient escaping on the $custom_profile parameter in the ~/inc/admin/views/backend-user-profile.php file, enabling attackers to execute arbitrary scripts.
Affected Systems and Versions
- Product: LearnPress
- Vendor: LearnPress
- Versions Affected: <= 4.1.3.1
Exploitation Mechanism
Attackers need high privileges to exploit this vulnerability. They can inject malicious scripts by leveraging the compromised $custom_profile parameter.
Mitigation and Prevention
Mitigation strategies and preventive measures are crucial to safeguard systems.
Immediate Steps to Take
- Update the LearnPress plugin to version 4.1.3.2 or newer to mitigate the vulnerability.
Long-Term Security Practices
- Regularly monitor and audit user access to prevent unauthorized actions.
- Implement content security policies to mitigate XSS vulnerabilities.
Patching and Updates
- Stay informed about security patches and updates for the LearnPress plugin to address any future vulnerabilities.