CVE-2023-5810 in flusity
Summary
by MITRE • 10/27/2023
A vulnerability, which was classified as problematic, has been found in flusity CMS. This issue affects the function loadPostAddForm of the file core/tools/posts.php. The manipulation of the argument edit_post_id leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The identifier of the patch is 6943991c62ed87c7a57989a0cb7077316127def8. It is recommended to apply a patch to fix this issue. The identifier VDB-243641 was assigned to this vulnerability.
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Analysis
by VulDB Data Team • 11/18/2023
The vulnerability identified as CVE-2023-5810 represents a cross-site scripting flaw within the flusity CMS platform that poses significant security risks to affected systems. This issue resides in the core/tools/posts.php file where the loadPostAddForm function processes user input through the edit_post_id argument, creating an attack vector that allows malicious actors to inject harmful scripts into web pages viewed by other users. The vulnerability's classification as problematic indicates its potential for exploitation and the need for immediate remediation efforts.
The technical nature of this flaw stems from insufficient input validation and output sanitization mechanisms within the CMS's post management functionality. When the edit_post_id parameter is processed without proper sanitization, it creates an opportunity for attackers to inject malicious JavaScript code that executes in the context of other users' browsers. This type of vulnerability directly maps to CWE-79 which specifically addresses cross-site scripting vulnerabilities in web applications. The remote exploitability aspect means that attackers can trigger this vulnerability through web-based interfaces without requiring physical access to the target system, making it particularly dangerous for web applications that handle user-generated content.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform various malicious activities including session hijacking, credential theft, data manipulation, and redirection to malicious websites. Given that flusity CMS employs a rolling release model for continuous delivery, the lack of specific version details for affected and patched releases complicates the remediation process for administrators who must identify vulnerable installations. The public disclosure of the exploit increases the likelihood of widespread exploitation and makes this vulnerability particularly dangerous in environments where timely patch management may be delayed.
Security practitioners should prioritize the application of the provided patch with commit identifier 6943991c62ed87c7a57989a0cb7077316127def8 as the primary mitigation strategy. This patch addresses the root cause by implementing proper input validation and output encoding for the edit_post_id parameter within the loadPostAddForm function. Organizations should also consider implementing additional defensive measures such as web application firewalls, content security policies, and regular security assessments to prevent similar vulnerabilities from emerging in other components of their web infrastructure. The vulnerability's assignment to VDB-243641 indicates it has been cataloged in vulnerability databases, making it searchable and trackable for security teams across the industry. The rolling release approach of flusity CMS underscores the importance of maintaining current patch levels and implementing automated security monitoring to detect and respond to similar vulnerabilities before they can be exploited in the wild.