CVE-2007-0121 in RI Blog
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in search.asp in RI Blog 1.3 allows remote attackers to inject arbitrary web script or HTML via the q parameter.
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Analysis
by VulDB Data Team • 11/29/2025
The vulnerability identified as CVE-2007-0121 represents a classic cross-site scripting flaw within the RI Blog 1.3 content management system, specifically affecting the search.asp component. This weakness resides in the application's improper handling of user input parameters, creating an avenue for malicious actors to execute unauthorized code within the context of other users' browsers. The vulnerability manifests when the q parameter in the search.asp script fails to adequately sanitize or validate input data before processing, allowing attackers to inject malicious scripts that can be executed by unsuspecting visitors.
This XSS vulnerability falls under the Common Weakness Enumeration category CWE-79, which specifically addresses improper neutralization of input during web page generation. The flaw enables attackers to inject arbitrary HTML or JavaScript code through the search functionality, potentially compromising user sessions, stealing sensitive information, or redirecting users to malicious websites. The attack vector is particularly dangerous because it leverages the legitimate search functionality of the blog platform, making it more difficult for users and administrators to distinguish between benign and malicious requests.
The operational impact of this vulnerability extends beyond simple script injection, as it can lead to session hijacking, credential theft, and the potential for more sophisticated attacks such as phishing or malware distribution. When exploited, the vulnerability allows remote attackers to manipulate the web application's behavior and potentially gain unauthorized access to user accounts or sensitive data. The attack requires minimal technical expertise, making it particularly dangerous as it can be exploited by attackers with basic knowledge of web security principles.
Mitigation strategies for CVE-2007-0121 should focus on implementing proper input validation and output encoding mechanisms within the search.asp script. Developers should employ parameterized queries or strict input sanitization to prevent malicious code from being executed. Additionally, implementing Content Security Policy headers and using web application firewalls can provide additional layers of protection. The vulnerability demonstrates the critical importance of input validation and output encoding practices, aligning with ATT&CK technique T1059.001 for command and scripting interpreter, where attackers exploit input validation flaws to inject malicious code into web applications. Organizations should prioritize immediate patching of affected systems and implement comprehensive security testing to identify similar vulnerabilities in other components of their web infrastructure.