CVE-2024-39660 in Photo Engine Plugin
Summary
by MITRE • 08/02/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Jordy Meow Photo Engine allows Stored XSS.This issue affects Photo Engine: from n/a through 6.3.1.
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Analysis
by VulDB Data Team • 03/16/2025
The CVE-2024-39660 vulnerability represents a critical cross-site scripting flaw in the Jordy Meow Photo Engine software, specifically classified as a stored XSS vulnerability that poses significant security risks to web applications. This vulnerability falls under the Common Weakness Enumeration CWE-79 category, which defines the improper neutralization of input during web page generation as a fundamental weakness in web application security. The flaw allows attackers to inject malicious scripts into web pages that are then executed by other users, creating a persistent security threat that can compromise user sessions and data integrity. The vulnerability affects all versions of the Photo Engine from the initial release through version 6.3.1, indicating a long-standing issue that has not been adequately addressed in the software development lifecycle.
The technical implementation of this vulnerability occurs during the web page generation process where user input is not properly sanitized or escaped before being rendered in HTML output. When users interact with the photo engine application, particularly when submitting comments, metadata, or other user-generated content, the application fails to adequately validate or escape special characters that could be interpreted as HTML or JavaScript code. This allows malicious actors to craft payloads that, when stored within the application's database or storage mechanisms, persistently execute whenever other users view the affected content. The stored nature of this XSS vulnerability means that the malicious scripts are not limited to a single request but remain active until manually removed, creating a persistent threat vector that can be exploited repeatedly by multiple users.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it provides attackers with the capability to manipulate the application's functionality and user experience in potentially devastating ways. An attacker could inject scripts that redirect users to phishing sites, steal cookies and authentication tokens, or even execute malicious commands on behalf of the victim. The vulnerability's presence in the Photo Engine application creates a potential attack surface that could be leveraged to compromise user accounts, manipulate photo galleries, or gain unauthorized access to sensitive user data. Security professionals should note that this vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as the stored XSS could enable attackers to execute arbitrary code within user browsers, and T1566.001 for spearphishing attachments, as attackers might use the vulnerability to deliver malicious payloads through compromised photo content.
Mitigation strategies for CVE-2024-39660 must address both immediate remediation and long-term security improvements to prevent similar vulnerabilities from emerging in future software releases. Organizations should prioritize upgrading to the latest version of the Jordy Meow Photo Engine where the vulnerability has been patched, as this represents the most direct and effective solution. Additionally, implementing proper input validation and output encoding mechanisms throughout the application's codebase is essential, particularly focusing on the sanitization of user-generated content before storage and rendering. Security measures should include the implementation of Content Security Policy headers, proper HTML escaping techniques, and regular security testing including automated scanning and manual penetration testing to identify potential XSS vulnerabilities in the application's input handling mechanisms. The vulnerability demonstrates the critical importance of following secure coding practices and the need for comprehensive security testing throughout the software development lifecycle to prevent such flaws from reaching production environments.