CVE-2019-20520 : What You Need to Know

ERPNext version 11.1.47 is vulnerable to a reflected XSS issue when utilizing the PATH_INFO on the api/method/ URI.

Understanding CVE-2019-20520

This CVE entry describes a security vulnerability in ERPNext version 11.1.47 that allows for a reflected XSS attack.

What is CVE-2019-20520?

CVE-2019-20520 is a vulnerability in ERPNext version 11.1.47 that enables an attacker to execute a reflected XSS attack by manipulating the PATH_INFO on the api/method/ URI.

The Impact of CVE-2019-20520

The vulnerability has a CVSSv3 base score of 7.4, indicating a high severity issue with a high impact on confidentiality.

Technical Details of CVE-2019-20520

ERPNext version 11.1.47 is affected by a reflected XSS vulnerability that can be exploited under specific conditions.

Vulnerability Description

The vulnerability in ERPNext version 11.1.47 allows attackers to inject malicious scripts via the PATH_INFO on the api/method/ URI, leading to a reflected XSS attack.

Affected Systems and Versions

Product: ERPNext
Vendor: N/A
Version: 11.1.47

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
User Interaction: Required
Scope: Changed
Privileges Required: None

Mitigation and Prevention

To address CVE-2019-20520, follow these mitigation strategies:

Immediate Steps to Take

Disable the use of PATH_INFO in the api/method/ URI.
Implement input validation to sanitize user-supplied data.

Long-Term Security Practices

Regularly update ERPNext to the latest secure version.
Educate users on safe browsing practices and the risks of XSS attacks.

Patching and Updates

Apply patches provided by ERPNext to fix the vulnerability and prevent exploitation.