CVE-2023-2948 : Security Advisory and Response

This CVE involves a Cross-site Scripting (XSS) vulnerability in the GitHub repository openemr/openemr prior to version 7.0.1.

Understanding CVE-2023-2948

This section will provide insights into what exactly CVE-2023-2948 is and its impact, along with the technical details of the vulnerability and how to mitigate it.

What is CVE-2023-2948?

CVE-2023-2948 is a Cross-site Scripting (XSS) vulnerability found in the openemr/openemr GitHub repository before version 7.0.1. This vulnerability may allow attackers to inject malicious scripts into web pages viewed by other users.

The Impact of CVE-2023-2948

With a CVSS base score of 8.3 (High), this vulnerability could result in unauthorized script execution in a user's browser, potentially leading to sensitive data theft or manipulation, impacting the confidentiality and integrity of the affected system.

Technical Details of CVE-2023-2948

Understanding the vulnerability description, affected systems, versions, and exploitation mechanism can assist in formulating effective mitigation strategies.

Vulnerability Description

The vulnerability (CWE-79) pertains to improper neutralization of input during web page generation, enabling Cross-site Scripting (XSS) attacks by injecting malicious scripts into vulnerable web applications.

Affected Systems and Versions

The vulnerability impacts the openemr/openemr GitHub repository with versions prior to 7.0.1. Systems using this specific version are susceptible to exploitation.

Exploitation Mechanism

Exploiting this vulnerability involves injecting specially crafted scripts into web pages, which, when viewed by other users, execute malicious actions within their browser environment.

Mitigation and Prevention

Taking immediate steps to secure systems, implementing long-term security practices, and applying necessary patches and updates are crucial in mitigating the risks posed by CVE-2023-2948.

Immediate Steps to Take

Web administrators should sanitize user inputs, validate and encode output data, and implement Content Security Policy (CSP) headers to mitigate XSS risks. Additionally, updating to the latest version (7.0.1 or higher) of openemr/openemr is recommended.

Long-Term Security Practices

Regular security assessments, employing code reviews, and providing security awareness training to developers and users can help prevent similar XSS vulnerabilities in the future.

Patching and Updates

OpenEMR users are advised to promptly apply security patches and updates released by the vendor to address CVE-2023-2948. Keeping software up to date is essential for maintaining a secure and resilient system.