CVE-2023-41592 in Froala
Summary
by MITRE • 09/15/2023
Froala Editor v4.0.1 to v4.1.1 was discovered to contain a cross-site scripting (XSS) vulnerability.
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Analysis
by VulDB Data Team • 10/12/2023
The Froala Editor is a rich text editor component widely used in web applications to enable users to create and format content through a graphical interface. This particular vulnerability affects versions 4.0.1 through 4.1.1 of the editor, representing a significant security concern for applications that integrate this component. The vulnerability manifests as a cross-site scripting flaw that could potentially allow attackers to execute malicious scripts in the context of a victim's browser, thereby compromising user sessions and potentially leading to unauthorized access to sensitive data.
The technical nature of this vulnerability stems from insufficient input validation and output encoding within the Froala Editor's processing mechanisms. When users input content into the editor, the system fails to properly sanitize or escape certain characters and markup elements that could be interpreted as executable code by web browsers. This weakness creates an environment where malicious actors can inject script payloads through carefully crafted input that gets rendered back to other users browsing the affected application. The vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws, and aligns with ATT&CK technique T1203 which focuses on exploitation of web application vulnerabilities.
The operational impact of this vulnerability extends beyond simple script execution as it can enable attackers to perform session hijacking, steal user credentials, manipulate application data, and potentially escalate privileges within the affected system. When integrated into web applications, the Froala Editor becomes a potential attack vector where malicious users can inject scripts that persist across user sessions. This could lead to unauthorized access to user accounts, data exfiltration, and modification of content displayed to other users. The vulnerability particularly affects applications where users can input content that gets rendered back to other users, such as forums, content management systems, and collaborative platforms.
Organizations using affected versions of Froala Editor should prioritize immediate remediation through patching to version 4.1.2 or later which contains the necessary fixes for this XSS vulnerability. Additionally, implementing proper input validation at multiple layers including client-side and server-side sanitization can provide additional defense-in-depth measures. Security teams should also consider implementing content security policies and monitoring for suspicious script injections within their applications. The vulnerability demonstrates the critical importance of regular security updates and thorough testing of third-party components, particularly those handling user input in web applications. Organizations should conduct comprehensive vulnerability assessments to identify other instances of the affected editor version and ensure all instances are updated to prevent exploitation of this and related vulnerabilities.