CVE-2023-36828 : Security Advisory and Response
Learn about CVE-2023-36828 affecting Statamic CMS. Discover the impact, technical details, and mitigation steps for this cross-site scripting vulnerability.
A vulnerability has been discovered in Statamic's Antlers sanitizer where it cannot effectively sanitize malicious SVG, potentially leading to cross-site scripting attacks. Here's what you need to know about CVE-2023-36828.
Understanding CVE-2023-36828
This section provides an overview of the vulnerability affecting Statamic's content management system.
What is CVE-2023-36828?
Statamic, a flat-first content management system, was susceptible to cross-site scripting attacks due to improper neutralization of input during web page generation, specifically with SVG tags. The issue persisted in versions prior to 4.10.0.
The Impact of CVE-2023-36828
The vulnerability allowed attackers to execute malicious scripts through SVG tags, bypassing the sanitization process. This could result in unauthorized access, data theft, or system manipulation.
Technical Details of CVE-2023-36828
Explore the specifics of the vulnerability, affected systems, and exploitation mechanism.
Vulnerability Description
Statamic versions below 4.10.0 failed to adequately sanitize SVG content, enabling threat actors to inject and execute malicious scripts.
Affected Systems and Versions
The security flaw impacted Statamic CMS versions prior to 4.10.0, leaving them vulnerable to cross-site scripting attacks utilizing SVG elements.
Exploitation Mechanism
By leveraging the inadequately sanitized SVG tags, attackers could inject harmful scripts into web pages, exposing users to various risks.
Mitigation and Prevention
Discover the steps to mitigate the vulnerability and prevent potential exploits.
Immediate Steps to Take
Users are advised to update their Statamic CMS to version 4.10.0 or later to patch the security hole and prevent exploitation via malicious SVG injection.
Long-Term Security Practices
It is crucial to maintain an updated CMS, apply security patches promptly, and implement robust input validation mechanisms to thwart XSS attacks effectively.
Patching and Updates
Ensure regular updates and monitoring of security advisories to stay protected against emerging vulnerabilities.