CVE-2010-2437 in AneCMS Blog
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in class/tools.class.php in AneCMS Blog 1.3 and possibly earlier allows remote attackers to inject arbitrary web script or HTML via the comment variable to modules/blog/index.php.
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Analysis
by VulDB Data Team • 01/20/2025
The vulnerability identified as CVE-2010-2437 represents a classic cross-site scripting flaw within the AneCMS Blog 1.3 content management system, which falls under the CWE-79 category of Improper Neutralization of Input During Web Page Generation. This weakness occurs when the application fails to properly sanitize user input before incorporating it into dynamically generated web pages, creating an avenue for malicious actors to execute arbitrary scripts in the context of other users' browsers.
The technical implementation of this vulnerability resides in the class/tools.class.php file where the comment variable from modules/blog/index.php is processed without adequate input validation or output encoding. When users submit comments through the blog interface, the system accepts the input directly into the HTML response without sanitizing potentially malicious content such as javascript code, html tags, or other script payloads. This flaw allows attackers to inject malicious code that executes in the browsers of other visitors, making it a persistent threat that can affect multiple users over time.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it enables attackers to establish persistent footholds within the application's user base. Through XSS exploitation, malicious actors can steal session cookies, redirect users to phishing sites, perform actions on behalf of authenticated users, or even establish backdoor access through more sophisticated attack vectors. The vulnerability is particularly dangerous in a blog environment where users frequently interact with content and where the application may be used by multiple users with varying levels of privileges, creating potential for privilege escalation attacks.
Mitigation strategies for CVE-2010-2437 should implement comprehensive input validation and output encoding practices, aligning with the principles outlined in the OWASP Top Ten and the ATT&CK framework's TA0001 Initial Access and TA0002 Execution tactics. The most effective remediation involves implementing proper sanitization of all user-supplied input through the use of allowlists, proper HTML escaping, and content security policies. Organizations should also consider implementing a web application firewall to detect and prevent XSS payloads, while ensuring that all user-generated content is properly encoded before being rendered in web pages. Additionally, regular security audits and code reviews should be conducted to identify similar vulnerabilities in other parts of the application stack, as this type of flaw often indicates broader input validation issues within the system architecture.