CVE-2023-23735 in Spectra Plugin
Summary
by MITRE • 06/04/2024
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Brainstorm Force Spectra allows Code Injection.This issue affects Spectra: from n/a through 2.3.0.
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Analysis
by VulDB Data Team • 03/26/2025
The vulnerability identified as CVE-2023-23735 represents a critical cross-site scripting weakness within the Brainstorm Force Spectra plugin, specifically affecting versions ranging from an unspecified initial version through 2.3.0. This flaw resides in the plugin's handling of user input within HTML contexts, creating a pathway for malicious actors to inject and execute arbitrary script code within the web application's environment. The vulnerability manifests as an improper neutralization of script-related HTML tags, which directly violates fundamental web security principles and allows for unauthorized code execution within the context of affected user sessions.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the Spectra plugin's codebase. When user-supplied data is processed and rendered within HTML pages without proper sanitization, attackers can craft malicious payloads that bypass security controls designed to prevent code injection. This particular weakness enables attackers to inject HTML tags containing JavaScript code that executes in the browser context of authenticated users, potentially leading to session hijacking, data theft, or further exploitation of the compromised system. The vulnerability aligns with CWE-79, which specifically addresses Cross-Site Scripting vulnerabilities, and represents a classic example of basic XSS exploitation where user input flows directly into HTML output without adequate sanitization.
The operational impact of this vulnerability extends beyond simple code injection, creating significant risks for organizations utilizing the Spectra plugin. Attackers can leverage this weakness to steal user sessions, redirect victims to malicious sites, or manipulate the functionality of the affected web application. The potential for privilege escalation exists when the compromised user has administrative privileges, as the injected code could be used to modify plugin settings, access restricted content, or establish persistent backdoors. This vulnerability particularly affects WordPress environments where Spectra is installed, potentially compromising entire websites and their associated user data. The risk is exacerbated by the fact that the vulnerability affects multiple versions, indicating a prolonged exposure window where organizations could be compromised without immediate awareness.
Mitigation strategies for CVE-2023-23735 must prioritize immediate plugin updates to versions that address the XSS vulnerability, as provided by the vendor. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar issues in other components of their web applications. The implementation of Content Security Policies (CSP) can provide additional defense-in-depth measures by restricting the sources from which scripts can be executed within the browser context. Security monitoring should include detection of anomalous user behavior patterns that might indicate exploitation attempts, while regular security audits of web applications should include thorough review of input handling and output encoding practices. The vulnerability also underscores the importance of adhering to the principle of least privilege and implementing robust access controls to limit the potential impact of successful exploitation attempts. Organizations should consider implementing web application firewalls and continuous monitoring solutions that can detect and block known attack patterns associated with XSS vulnerabilities. The ATT&CK framework categorizes this type of vulnerability under T1213, which involves data from information repositories, highlighting the potential for attackers to leverage such weaknesses to access sensitive user data and system resources through unauthorized code execution within legitimate user sessions.