CVE-2008-2698 in WEBalbum
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in photo_add-c.php (aka the "add comment" section) in WEBalbum 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) comment, (2) id, or (3) category parameter.
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Analysis
by VulDB Data Team • 09/26/2018
The vulnerability identified as CVE-2008-2698 represents a critical cross-site scripting weakness in WEBalbum 2.0 and earlier versions, specifically within the photo_add-c.php component that handles comment submission functionality. This flaw exists in the web application's input validation mechanisms, allowing malicious actors to inject malicious code through three distinct parameter vectors including the comment field, id parameter, and category parameter. The vulnerability stems from inadequate sanitization of user-supplied input data before it is processed and stored within the application's database. When users submit comments through the photo_add-c.php interface, the application fails to properly escape or filter special characters that could be interpreted as HTML or JavaScript commands by web browsers. This oversight creates a persistent XSS vector that can be exploited by remote attackers to execute arbitrary scripts in the context of other users' browsers. The vulnerability manifests as a classic reflected XSS attack pattern where malicious payloads are embedded within the comment submission process and subsequently rendered when other users view the affected content.
The technical implementation of this vulnerability aligns with CWE-79, which specifically addresses Cross-Site Scripting flaws in web applications. The attack surface is particularly concerning as it targets the comment functionality of a photo album application, which typically serves as a user engagement feature that generates high traffic and user interaction. When attackers exploit this vulnerability, they can potentially steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or harvest sensitive information from authenticated sessions. The three parameter vectors provide multiple attack pathways, increasing the exploitability of the vulnerability and making it more difficult to secure against all potential entry points. The vulnerability's impact extends beyond simple script execution as it can be leveraged for more sophisticated attacks including credential theft, privilege escalation, or data exfiltration. The flaw demonstrates a fundamental lack of proper input validation and output encoding practices that are essential for secure web application development.
From an operational perspective, this vulnerability presents significant risks to both end users and system administrators within the WEBalbum environment. Users who view affected comments could unknowingly have their browser sessions compromised, potentially leading to unauthorized access to their personal photo albums or account information. The persistent nature of stored XSS vulnerabilities means that malicious payloads remain active until manually removed by administrators, creating ongoing security exposure. Attackers can craft sophisticated payloads that exploit browser-specific behaviors or leverage advanced techniques such as iframe injection or beaconing to establish command and control channels. The vulnerability also creates potential for mass propagation through social engineering, as users may unknowingly click on malicious links within comment fields. Security teams face challenges in monitoring and mitigating this threat as it operates within legitimate user interaction pathways, making detection more difficult than traditional security breaches. The vulnerability's presence in a widely used photo album application increases the potential attack surface significantly, as many users may be unaware of the security implications of commenting on photos.
Mitigation strategies for this vulnerability should encompass both immediate remediation and long-term architectural improvements. The most effective immediate solution involves implementing proper input sanitization and output encoding mechanisms throughout the application, specifically targeting the three vulnerable parameters mentioned in the vulnerability description. This includes applying HTML entity encoding to all user-supplied content before rendering it within web pages, implementing strict input validation that rejects suspicious character sequences, and utilizing content security policies to limit script execution. Organizations should also consider implementing proper parameter validation that restricts input to expected formats and lengths, while maintaining comprehensive logging and monitoring capabilities to detect potential exploitation attempts. The fix should align with established security frameworks and best practices, including the OWASP Top Ten recommendations for preventing XSS vulnerabilities. Additionally, regular security assessments and code reviews should be implemented to identify similar weaknesses in other application components, ensuring that the security hardening efforts extend beyond this specific vulnerability. System administrators should also consider implementing web application firewalls and intrusion detection systems that can identify and block known XSS attack patterns, while maintaining regular updates and patches to address similar vulnerabilities that may be discovered in the future. The remediation approach must also include user education about the risks of clicking on untrusted links or submitting content that may contain malicious code.