CVE-2020-8120 : What You Need to Know
Learn about CVE-2020-8120, a reflected Cross-Site Scripting vulnerability in Nextcloud Server 16.0.1. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A reflected Cross-Site Scripting vulnerability in Nextcloud Server 16.0.1 was discovered in the svg generation.
Understanding CVE-2020-8120
This CVE involves a Cross-Site Scripting vulnerability in Nextcloud Server 16.0.1.
What is CVE-2020-8120?
It is a reflected Cross-Site Scripting vulnerability found in Nextcloud Server version 16.0.1 during svg generation.
The Impact of CVE-2020-8120
This vulnerability could allow an attacker to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions.
Technical Details of CVE-2020-8120
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability is classified as Cross-site Scripting (XSS) - Reflected (CWE-79).
Affected Systems and Versions
- Product: Nextcloud Server
- Version: 16.0.1
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious SVG file that, when viewed by a user, triggers the execution of unauthorized scripts.
Mitigation and Prevention
Protective measures to address the CVE.
Immediate Steps to Take
- Update Nextcloud Server to a non-vulnerable version.
- Avoid opening SVG files from untrusted sources.
Long-Term Security Practices
- Regularly update software to patch known vulnerabilities.
- Educate users on safe browsing practices to prevent XSS attacks.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of exploitation.