CVE-2024-26490 in JD Simple Module
Summary
by MITRE • 02/22/2024
A cross-site scripting (XSS) vulnerability in the Addon JD Simple module of flusity-CMS v2.33 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Title text field.
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Analysis
by VulDB Data Team • 04/18/2025
The vulnerability identified as CVE-2024-26490 represents a critical cross-site scripting flaw within the flusity-CMS v2.33 platform, specifically affecting the Addon JD Simple module. This security weakness arises from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before rendering it within web pages. The vulnerability manifests when attackers exploit the Title text field, which serves as an entry point for malicious payloads that can be executed in the context of other users' browsers. The flaw enables attackers to inject arbitrary JavaScript code or HTML content that persists within the application's interface, potentially compromising user sessions and data integrity.
The technical exploitation of this vulnerability follows standard XSS attack patterns where malicious input bypasses the application's security controls designed to prevent script execution. When the vulnerable Title field processes user input without adequate sanitization, the injected scripts become part of the page's dynamic content and execute in the victim's browser context. This behavior aligns with CWE-79 which categorizes cross-site scripting vulnerabilities as weaknesses in input validation and output encoding. The vulnerability's impact extends beyond simple script injection to potentially enable session hijacking, credential theft, and further exploitation of the compromised user's privileges within the CMS environment.
From an operational standpoint, this vulnerability poses significant risks to flusity-CMS users who rely on the platform for content management and administrative functions. Attackers can leverage the XSS flaw to manipulate content, redirect users to malicious sites, or harvest sensitive information from authenticated sessions. The persistence of the injected scripts means that any user who views the affected content becomes a potential victim, creating a chain reaction effect that can compromise multiple users within the system. The vulnerability affects the availability and integrity of the CMS platform, potentially leading to unauthorized content modification and data breaches that could impact the organization's reputation and compliance posture.
Organizations utilizing flusity-CMS v2.33 should immediately implement mitigations including input validation and output encoding controls to prevent malicious payloads from being processed. The recommended approach involves implementing strict sanitization of all user inputs, particularly those rendered in web contexts, and deploying Content Security Policy headers to limit script execution. Security patches or updates from the flusity-CMS vendor should be prioritized to address this vulnerability, as the flaw represents a direct threat to the platform's security and user trust. Additionally, implementing web application firewalls and monitoring for suspicious input patterns can provide additional layers of defense against exploitation attempts. This vulnerability demonstrates the critical importance of input validation and output encoding practices in web application security, aligning with ATT&CK technique T1059.001 for command and scripting interpreter and T1566.001 for spearphishing with a link, as attackers can use the XSS vulnerability to deliver malicious payloads through compromised CMS content.