CVE-2020-15183 : Security Advisory and Response

SoyCMS 3.0.2 and earlier versions are affected by Reflected Cross-Site Scripting (XSS) leading to Remote Code Execution (RCE) from a known vulnerability. This allows attackers to manipulate administrators into editing files by loading a specially crafted webpage.

Understanding CVE-2020-15183

SoyCMS 3.0.2 and earlier versions are susceptible to a critical security issue that enables attackers to execute remote code by exploiting a reflected XSS vulnerability.

What is CVE-2020-15183?

CVE-2020-15183 is a security vulnerability in SoyCMS versions 3.0.2 and earlier that allows for Reflected Cross-Site Scripting (XSS) attacks, leading to Remote Code Execution (RCE) from a known security flaw.

The Impact of CVE-2020-15183

The vulnerability poses a high risk with a CVSS base score of 8.4, impacting confidentiality, integrity, and availability of the affected systems. Attackers with high privileges can exploit this issue remotely, requiring user interaction.

Technical Details of CVE-2020-15183

SoyCMS's vulnerability to Reflected XSS leading to RCE has the following technical details:

Vulnerability Description

Type: Reflected Cross-Site Scripting (XSS)
Impact: Remote Code Execution (RCE)

Affected Systems and Versions

Product: SoyCMS
Vendor: inunosinsi
Versions Affected: <= 3.0.2

Exploitation Mechanism

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

Mitigation and Prevention

To address CVE-2020-15183 and enhance security:

Immediate Steps to Take

Update SoyCMS to version 3.0.3 or later to mitigate the vulnerability.
Educate administrators about the risks of opening untrusted webpages.

Long-Term Security Practices

Implement input validation mechanisms to prevent XSS attacks.
Regularly monitor and audit web applications for security vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by the vendor.