CVE-2020-8778 : Security Advisory and Response

Alfresco Enterprise before 5.2.7 and Alfresco Community before 6.2.0 (rb65251d6-b368) has a cross-site scripting (XSS) vulnerability via an uploaded document when the attacker has write access to a project.

Understanding CVE-2020-8778

This CVE identifies a security issue in Alfresco Enterprise and Community versions that could be exploited through XSS attacks.

What is CVE-2020-8778?

CVE-2020-8778 is a vulnerability in Alfresco software that allows attackers to execute malicious scripts in the context of a user's session.

The Impact of CVE-2020-8778

The XSS vulnerability in Alfresco could lead to unauthorized access, data theft, and potential compromise of sensitive information.

Technical Details of CVE-2020-8778

Alfresco's security flaw is detailed below:

Vulnerability Description

Alfresco Enterprise before 5.2.7 and Alfresco Community before 6.2.0 are susceptible to XSS attacks.

Affected Systems and Versions

Alfresco Enterprise versions prior to 5.2.7
Alfresco Community versions before 6.2.0

Exploitation Mechanism

Attackers with write access to a project can upload a document containing malicious scripts to exploit the vulnerability.

Mitigation and Prevention

Protect your systems from CVE-2020-8778 with the following measures:

Immediate Steps to Take

Update Alfresco Enterprise to version 5.2.7 or higher.
Upgrade Alfresco Community to version 6.2.0 or above.
Restrict write access to projects to trusted users.

Long-Term Security Practices

Regularly monitor and audit document uploads for malicious content.
Educate users on safe document handling practices to prevent XSS attacks.

Patching and Updates

Stay informed about security patches and updates from Alfresco to address vulnerabilities like CVE-2020-8778.