CVE-2009-4934 in Online Photo Pro
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in index.php in Online Photo Pro 2.0 allows remote attackers to inject arbitrary web script or HTML via the section parameter.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 07/27/2025
The vulnerability identified as CVE-2009-4934 represents a classic cross-site scripting flaw within the Online Photo Pro 2.0 web application. This issue resides in the index.php file and specifically targets the section parameter handling mechanism. The vulnerability classification aligns with CWE-79 which defines cross-site scripting as a weakness where untrusted data is incorporated into web page content without proper validation or encoding, creating opportunities for malicious script execution. The affected application fails to adequately sanitize user input before incorporating it into dynamically generated web content, thereby exposing users to potential security risks.
The technical implementation of this vulnerability demonstrates a failure in input validation and output encoding practices within the web application's request processing pipeline. When the section parameter is passed to index.php, the application directly incorporates this value into the generated HTML response without appropriate sanitization measures. This creates an environment where remote attackers can inject malicious scripts that will execute in the context of other users' browsers. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous as it can be leveraged by attackers who simply need to convince victims to click on a malicious link containing the crafted payload.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. Attackers can leverage this XSS flaw to perform various malicious activities including but not limited to stealing user cookies, redirecting victims to phishing sites, defacing the website content, or executing unauthorized actions on behalf of authenticated users. The attack vector is particularly concerning as it enables persistent XSS attacks where malicious scripts can be stored on the server and executed against multiple users over time. This vulnerability also provides a potential foothold for more sophisticated attacks, as it can be used to establish a persistent presence within the victim's browsing session and potentially escalate to more serious security breaches. The attack surface is broadened by the fact that the vulnerability affects the core application functionality through the section parameter, making it a critical security concern for any organization relying on this photo management system.
Mitigation strategies for CVE-2009-4934 should focus on implementing proper input validation and output encoding mechanisms. The primary defense involves sanitizing all user-supplied input, particularly parameters like section, before incorporating them into web page content. This can be achieved through the use of whitelisting techniques where only predefined valid values are accepted, or through comprehensive input filtering that removes or encodes potentially dangerous characters. Additionally, implementing Content Security Policy headers can provide an additional layer of protection by restricting the sources from which scripts can be loaded and executed. The application should also adopt proper output encoding for all dynamic content, ensuring that any user-provided data is properly escaped when rendered in HTML contexts. Organizations should consider implementing the principle of least privilege and regularly updating their applications to address known vulnerabilities. This vulnerability demonstrates the importance of following secure coding practices and adhering to industry standards such as those outlined in the OWASP Top Ten and NIST cybersecurity guidelines. The remediation process should include thorough code review and security testing to ensure that similar vulnerabilities are not present in other parts of the application.