CVE-2021-25975 : What You Need to Know

Publify versions v8.0 to v9.2.4 are vulnerable to stored XSS due to unrestricted file upload, allowing injection of malicious JavaScript by a user with 'publisher' role.

Understanding CVE-2021-25975

This CVE pertains to a stored cross-site scripting (XSS) vulnerability in Publify versions v8.0 to v9.2.4, attributed to an unrestricted file upload issue.

What is CVE-2021-25975?

CVE-2021-25975 exposes an XSS vulnerability in Publify, enabling a user with limited privileges to execute harmful script code through an uploaded HTML file.

The Impact of CVE-2021-25975

With a CVSS base score of 5.4 (Medium severity), this vulnerability could allow threat actors to inject malicious scripts into Publify, potentially compromising user data and system integrity.

Technical Details of CVE-2021-25975

This section provides insights into the vulnerability, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Publify versions v8.0 to v9.2.4 stems from an unrestricted file upload, enabling 'publisher' role users to inject malicious JavaScript via uploaded HTML files.

Affected Systems and Versions

Publify versions v8.0 to v9.2.4 are confirmed to be affected by this stored XSS vulnerability.

Exploitation Mechanism

By exploiting the file upload functionality, attackers with 'publisher' access can insert harmful JavaScript code, leading to potential XSS attacks.

Mitigation and Prevention

Explore immediate steps and long-term security practices to address CVE-2021-25975 and the importance of timely patching and updates.

Immediate Steps to Take

Users are advised to update their Publify installations to version v9.2.5 to mitigate the risk of exploitation and prevent XSS attacks.

Long-Term Security Practices

Implement security best practices such as role-based access controls, regular security audits, and user input validation to enhance overall system security.

Patching and Updates

Stay informed about security patches and updates released by Publify to address vulnerabilities and safeguard against potential threats.