CVE-2007-2102 in weblog
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in weblog.php in my little weblog allows remote attackers to inject arbitrary web script or HTML via the id parameter, a different vector than CVE-2006-6087.
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Analysis
by VulDB Data Team • 10/15/2017
The vulnerability identified as CVE-2007-2102 represents a classic cross-site scripting flaw within the my little weblog application's weblog.php component. This security weakness specifically manifests through the improper handling of the id parameter, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The vulnerability operates independently from CVE-2006-6087, indicating a distinct attack vector that requires separate remediation efforts.
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 occurs when user-supplied input from the id parameter is directly incorporated into web page output without adequate sanitization or encoding mechanisms. Attackers can exploit this by crafting malicious payloads that, when processed by the vulnerable application, execute unintended code within the victim's browser environment. The attack typically involves embedding malicious script tags or other HTML elements that get executed when legitimate users view the affected web page.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it enables attackers to perform session hijacking, redirect users to malicious sites, or execute persistent malicious code within the victim's browser context. This weakness can be particularly dangerous when combined with other attack vectors, as it provides attackers with a foothold for more sophisticated social engineering campaigns or privilege escalation attempts. The vulnerability affects the application's integrity and user trust, potentially leading to widespread compromise of user sessions and sensitive data exposure across the affected platform.
Mitigation strategies for CVE-2007-2102 should focus on implementing robust input validation and output encoding mechanisms. The most effective approach involves sanitizing all user-supplied input through proper encoding before incorporating it into web page content, particularly when dealing with parameters like id that may be used in dynamic page generation. Organizations should implement Content Security Policy headers to limit script execution contexts and employ proper parameter validation techniques that reject or sanitize potentially malicious input. Additionally, the application should utilize secure coding practices that prevent direct insertion of user data into HTML output without appropriate context-aware encoding. These defensive measures align with ATT&CK technique T1566, which covers social engineering via malicious content injection, and provide comprehensive protection against similar cross-site scripting vulnerabilities in web applications.