CVE-2020-15154 : Exploit Details and Defense Strategies

baserCMS 4.3.6 and earlier versions are affected by Cross Site Scripting (XSS) vulnerability, allowing arbitrary script execution with admin access. The issue is fixed in version 4.3.7.

Understanding CVE-2020-15154

baserCMS is susceptible to a Cross Site Scripting (XSS) vulnerability that requires admin access for exploitation.

What is CVE-2020-15154?

This CVE identifies a security flaw in baserCMS versions prior to 4.3.7 that enables attackers to execute arbitrary scripts through XSS, necessitating admin privileges for successful exploitation.

The Impact of CVE-2020-15154

The vulnerability poses a high severity risk with a CVSS base score of 7.3, affecting confidentiality, integrity, and requiring high privileges and user interaction for execution.

Technical Details of CVE-2020-15154

baserCMS vulnerability specifics and affected systems.

Vulnerability Description

Cross Site Scripting (XSS) vulnerability in baserCMS versions < 4.3.7
Admin access required for exploit
Affected components: content_fields.php, content_info.php, content_options.php, content_related.php, index_list_tree.php, jquery.bcTree.js

Affected Systems and Versions

Product: basercms
Vendor: baserproject
Versions affected: < 4.3.7

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: High
User Interaction: Required
Scope: Changed

Mitigation and Prevention

Protecting systems from CVE-2020-15154.

Immediate Steps to Take

Update baserCMS to version 4.3.7 to mitigate the vulnerability
Restrict admin access to reduce the risk of exploitation

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities
Educate users on safe browsing habits and potential risks

Patching and Updates

Apply security patches promptly to address known vulnerabilities