CVE-2007-2724 in fotolog
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in all_photos.html in fotolog allows remote attackers to inject arbitrary web script or HTML via the user parameter.
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Analysis
by VulDB Data Team • 10/17/2017
The vulnerability identified as CVE-2007-2724 represents a classic cross-site scripting flaw located within the fotolog web application's all_photos.html component. This security weakness specifically manifests when the application fails to properly sanitize user input passed through the user parameter, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The flaw exists at the application layer where user-supplied data is directly incorporated into dynamically generated web content without adequate validation or encoding mechanisms.
From a technical perspective this vulnerability operates under CWE-79 which classifies it as a cross-site scripting attack where the application incorporates untrusted data into web pages without proper validation or encoding. The specific attack vector involves an attacker crafting malicious input through the user parameter that gets rendered in the all_photos.html page, allowing the injected script to execute in the victim's browser context. This type of vulnerability enables attackers to potentially steal session cookies, deface web pages, redirect users to malicious sites, or perform actions on behalf of authenticated users.
The operational impact of this vulnerability extends beyond simple data theft or defacement. Attackers can leverage this weakness to establish persistent access patterns within the fotolog platform, potentially compromising user accounts and sensitive photo content. The vulnerability affects all versions of the fotolog application, making it particularly dangerous as it represents a widespread security flaw across the entire user base. Users who view the affected pages become unwitting participants in the attack, executing malicious code in their browsers without any indication of compromise.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms. The primary defense involves sanitizing all user input through proper parameter validation, ensuring that the user parameter in all_photos.html does not accept potentially malicious content. Additionally, implementing proper HTML encoding for all dynamic content insertion prevents script execution even if malicious input manages to bypass initial validation. Security measures should also include content security policies that restrict script execution and regular security audits to identify similar vulnerabilities in other application components. Organizations should follow established security frameworks such as the OWASP Top Ten and implement proper secure coding practices to prevent similar issues in future development cycles.