CVE-2020-15073 : Security Advisory and Response
Learn about CVE-2020-15073, an XSS vulnerability in phpList versions up to 3.5.4, allowing attackers to execute malicious scripts via text document uploads. Find mitigation steps and preventive measures here.
An XSS vulnerability in phpList through 3.5.4 allows attackers to execute malicious scripts via an edited text document upload.
Understanding CVE-2020-15073
What is CVE-2020-15073?
This CVE identifies a cross-site scripting (XSS) vulnerability in phpList versions up to 3.5.4, specifically within the Import Administrators and Subscriber Lists sections.
The Impact of CVE-2020-15073
Exploitation of this vulnerability could lead to unauthorized script execution, potentially compromising user data and system integrity.
Technical Details of CVE-2020-15073
Vulnerability Description
The issue arises from inadequate input validation in the Import Administrators section, allowing malicious scripts to be uploaded via text documents.
Affected Systems and Versions
- Product: phpList
- Versions affected: Up to 3.5.4
Exploitation Mechanism
Attackers can exploit this vulnerability by uploading specially crafted text documents containing malicious scripts, which are then executed within the application.
Mitigation and Prevention
Immediate Steps to Take
- Update phpList to version 3.5.5 or later to mitigate the vulnerability.
- Avoid uploading untrusted text documents to the Import Administrators section.
Long-Term Security Practices
- Regularly monitor for security updates and patches for phpList.
- Educate users on safe file upload practices to prevent XSS attacks.
Patching and Updates
Ensure timely installation of security patches and updates provided by phpList to address known vulnerabilities.