CVE-2017-15279 : Exploit Details and Defense Strategies

Umbraco CMS version prior to 7.7.3 is vulnerable to cross-site scripting (XSS) attacks, allowing remote attackers to inject malicious scripts or HTML.

Understanding CVE-2017-15279

This CVE identifies a specific vulnerability in Umbraco CMS that can be exploited by attackers to execute XSS attacks.

What is CVE-2017-15279?

Cross-site scripting (XSS) vulnerability in Umbraco CMS before version 7.7.3 enables remote attackers to inject arbitrary web scripts or HTML by manipulating the 'page name' parameter during the creation of a new page.

The Impact of CVE-2017-15279

Attackers can insert malicious scripts or content into web pages, potentially leading to unauthorized actions or data theft.
This vulnerability poses a risk to the integrity and security of websites using affected Umbraco CMS versions.

Technical Details of CVE-2017-15279

Umbraco CMS version prior to 7.7.3 is susceptible to XSS attacks due to inadequate input validation.

Vulnerability Description

The vulnerability is present in the files Publish.aspx.cs and notifications.aspx.cs within specific directories of Umbraco CMS.

Affected Systems and Versions

Affected Version: Umbraco CMS before 7.7.3

Exploitation Mechanism

Remote attackers exploit the 'page name' parameter to inject malicious scripts or HTML during the creation of new pages.

Mitigation and Prevention

To address CVE-2017-15279, follow these security measures:

Immediate Steps to Take

Update Umbraco CMS to version 7.7.3 or later to mitigate the XSS vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent script injections.

Long-Term Security Practices

Regularly monitor and audit web applications for security vulnerabilities.
Educate developers on secure coding practices to prevent XSS and other common web application vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by Umbraco CMS to address known vulnerabilities.