CVE-2021-44969 in Taocms
Summary
by MITRE • 02/11/2022
Taocms v3.0.2 was discovered to contain a cross-site scripting (XSS) vulnerability via the Management Column component.
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Analysis
by VulDB Data Team • 02/16/2022
The vulnerability identified as CVE-2021-44969 affects Taocms version 3.0.2 and represents a critical cross-site scripting flaw within the Management Column component. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting attacks where malicious scripts are injected into web applications. The vulnerability exists due to insufficient input validation and output encoding mechanisms within the management interface, allowing attackers to inject malicious JavaScript code through user-controllable parameters.
The technical exploitation of this XSS vulnerability occurs when an attacker crafts malicious input that gets processed and displayed within the Management Column component without proper sanitization. When legitimate users view the affected page, the injected script executes in their browser context, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability's impact is amplified because it resides within a management component, meaning that successful exploitation could provide attackers with administrative privileges or access to sensitive backend functionality. This represents a significant security risk as it allows for persistent malicious code execution within the application's administrative interface.
From an operational standpoint, this vulnerability creates substantial risk for organizations using Taocms v3.0.2 as it enables attackers to perform actions such as modifying content, creating new user accounts, or accessing restricted administrative features. The attack vector typically involves sending malicious payloads through web forms, URL parameters, or API endpoints that feed into the Management Column component. Security professionals should note that this vulnerability aligns with ATT&CK technique T1566.001, which covers the use of spearphishing attachments to gain initial access. The persistence of the vulnerability within the management interface makes it particularly dangerous as it can be leveraged for long-term unauthorized access to the content management system.
Mitigation strategies should include immediate patching of the Taocms application to version 3.0.3 or later, which contains the necessary fixes for the XSS vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms throughout the application, particularly in the Management Column component. Regular security scanning and penetration testing should be conducted to identify similar vulnerabilities in other components. Additionally, implementing a Content Security Policy (CSP) can provide additional protection against XSS attacks by restricting the sources from which scripts can be loaded. Network segmentation and monitoring of suspicious user activities within the management interface can also help detect potential exploitation attempts. The vulnerability demonstrates the critical importance of validating all user inputs and properly encoding output data to prevent malicious script injection attacks.