CVE-2018-10821 Explained : Impact and Mitigation

BlackCatCMS 1.3's backend/pages/modify.php is vulnerable to a cross-site scripting (XSS) attack, allowing remote authenticated users with Admin role to inject malicious scripts or HTML.

Understanding CVE-2018-10821

This CVE entry highlights a security vulnerability in BlackCatCMS 1.3 that could be exploited by authenticated users with specific privileges.

What is CVE-2018-10821?

CVE-2018-10821 is a cross-site scripting (XSS) vulnerability found in the search panel of BlackCatCMS 1.3's backend/pages/modify.php. This flaw enables attackers with the Admin role to insert arbitrary web scripts or HTML code.

The Impact of CVE-2018-10821

The vulnerability allows attackers to execute malicious scripts in the context of the user's session, potentially leading to various security risks such as data theft, unauthorized actions, or defacement of the website.

Technical Details of CVE-2018-10821

BlackCatCMS 1.3's vulnerability to XSS attacks can have severe consequences if exploited by malicious actors.

Vulnerability Description

The XSS vulnerability in backend/pages/modify.php of BlackCatCMS 1.3 permits remote authenticated users with Admin privileges to inject unauthorized web scripts or HTML code through the search panel.

Affected Systems and Versions

Affected System: BlackCatCMS 1.3
Affected Versions: All versions of BlackCatCMS 1.3

Exploitation Mechanism

The vulnerability can be exploited by authenticated users with the Admin role injecting malicious scripts or HTML code via the search panel, potentially compromising the security and integrity of the system.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-10821.

Immediate Steps to Take

Update BlackCatCMS to the latest version to patch the vulnerability.
Restrict access to the backend/pages/modify.php file to authorized personnel only.
Regularly monitor and audit user activities to detect any suspicious behavior.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Educate users on secure coding practices and the risks associated with XSS vulnerabilities.

Patching and Updates

Apply security patches provided by BlackCatCMS promptly to mitigate the vulnerability and enhance system security.