CVE-2023-3071 in corebos
Summary
by MITRE • 06/02/2023
Cross-site Scripting (XSS) - Stored in GitHub repository tsolucio/corebos prior to 8.
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Analysis
by VulDB Data Team • 01/26/2026
The vulnerability identified as CVE-2023-3071 represents a stored cross-site scripting flaw within the tsolucio/corebos GitHub repository version 8 and earlier. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting vulnerabilities where malicious scripts are injected into web applications and subsequently executed in the context of other users' browsers. The stored nature of this vulnerability means that the malicious payload is permanently stored on the server and executed whenever affected users access the compromised page or resource.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the corebos application framework. When users submit data through web forms or other input mechanisms, the application fails to properly sanitize or escape user-supplied content before storing it in the database. This allows attackers to inject malicious JavaScript code that persists in the application's data storage. When other users view pages containing this stored data, their browsers execute the malicious script, potentially leading to session hijacking, credential theft, or other malicious activities.
The operational impact of CVE-2023-3071 extends beyond simple script execution, as it can enable attackers to perform various malicious activities within the context of authenticated users. This includes stealing session cookies, modifying user permissions, accessing sensitive data, or redirecting users to malicious websites. The vulnerability particularly affects organizations using corebos versions prior to 8.0, making them susceptible to persistent attacks that can compromise user accounts and data integrity. Attackers can leverage this vulnerability to establish long-term presence within the application environment, potentially leading to data breaches or unauthorized access to critical business information.
Mitigation strategies for this vulnerability involve immediate upgrading to corebos version 8.0 or later, which includes proper input sanitization and output encoding mechanisms. Organizations should implement comprehensive input validation that filters or escapes potentially dangerous characters and patterns before storing user data. Additionally, implementing Content Security Policy (CSP) headers can provide an additional layer of protection against XSS attacks by restricting script execution sources. Regular security testing, including automated vulnerability scanning and manual penetration testing, should be conducted to identify similar vulnerabilities in web applications. The ATT&CK framework categorizes this vulnerability under T1566.001 - Phishing, as attackers can use XSS to create convincing phishing pages or steal authentication tokens from users. Organizations should also consider implementing Web Application Firewalls (WAFs) with XSS protection capabilities to detect and block malicious payloads before they can be executed in the user's browser context.