CVE-2024-25873 in Enhavo
Summary
by MITRE • 02/22/2024
Enhavo v0.13.1 was discovered to contain an HTML injection vulnerability in the Author text field under the Blockquote module. This vulnerability allows attackers to execute arbitrary code via a crafted payload.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 04/18/2025
The vulnerability identified as CVE-2024-25873 affects Enhavo version 0.13.1 and represents a critical HTML injection flaw within the Blockquote module's Author text field. This vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly filter malicious content submitted by users. The flaw exists in the content management system's handling of user-provided data within the specific module interface, creating an attack vector that can be exploited to manipulate the application's behavior. The vulnerability is particularly concerning as it allows for arbitrary code execution through crafted payloads that are not properly escaped or validated before being rendered in the application's user interface.
The technical implementation of this vulnerability aligns with CWE-79 which defines Cross-Site Scripting (XSS) conditions where untrusted data is incorporated into web pages without proper validation or escaping. The flaw occurs when user input containing HTML or JavaScript code is stored and subsequently displayed in the Author field without appropriate sanitization. Attackers can craft malicious payloads that include script tags, event handlers, or other HTML constructs that execute in the context of other users' browsers when they view the affected content. This creates a persistent XSS attack scenario where the malicious code can persist in the application's database and execute whenever the compromised content is rendered to end users.
The operational impact of this vulnerability extends beyond simple code execution to encompass potential data theft, session hijacking, and privilege escalation within the application environment. When exploited successfully, attackers can manipulate the Blockquote module's functionality to inject malicious scripts that can steal cookies, redirect users to phishing sites, or perform actions on behalf of authenticated users. The vulnerability affects the integrity and availability of the content management system as compromised content can be rendered across multiple user sessions and potentially impact the entire application interface. Additionally, the persistence of the injected code means that even after initial exploitation, the malicious payload continues to execute for all users who encounter the compromised content.
Mitigation strategies for CVE-2024-25873 should focus on immediate input validation and output encoding measures to prevent HTML injection attacks. Organizations should implement proper content sanitization libraries that strip or encode potentially dangerous HTML elements before storing user input in the database. The recommended approach includes applying context-specific encoding for different output contexts such as HTML, JavaScript, and URL contexts. Security patches should be applied immediately to update Enhavo to a version that addresses this vulnerability, with the specific fix implementing proper sanitization of the Author field within the Blockquote module. Additionally, implementing a Content Security Policy (CSP) can provide an additional layer of protection against script execution, while regular security audits and input validation testing should be conducted to prevent similar vulnerabilities from emerging in other application modules. The ATT&CK framework categorizes this vulnerability under T1059.007 for Scripting and T1566.001 for Spearphishing Attachment, highlighting the need for both application-level and user awareness security measures.