CVE-2006-3033 in MyScrapbook
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in MyScrapbook 3.1 allows remote attackers to inject arbitrary web script or HTML via the input box in singlepage.php when submitting scrapbook pages.
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Analysis
by VulDB Data Team • 07/29/2018
The vulnerability described in CVE-2006-3033 represents a classic cross-site scripting flaw that emerged in the MyScrapbook 3.1 web application, a tool designed for users to create and manage personal digital scrapbooks online. This type of vulnerability falls under the broader category of injection attacks that exploit the improper handling of user input within web applications. The specific weakness manifests in the singlepage.php component of the application, which fails to adequately sanitize or validate input received from users through the application's input forms. The vulnerability affects the application's ability to distinguish between legitimate user content and potentially malicious script code that could be embedded within the input fields.
The technical nature of this vulnerability stems from insufficient input validation and output encoding practices within the MyScrapbook application's codebase. When users submit content through the input box in singlepage.php, the application does not properly filter or escape special characters that could be interpreted as HTML or JavaScript commands by web browsers. This lack of proper sanitization creates an environment where attackers can inject malicious scripts that execute in the context of other users' browsers. The vulnerability specifically targets the application's handling of user-supplied data, making it a prime example of a client-side injection flaw that operates at the application layer of the web stack. According to CWE standards, this maps directly to CWE-79, which describes "Cross-site Scripting (XSS)" as a weakness that allows attackers to inject malicious scripts into web pages viewed by other users.
The operational impact of this vulnerability extends beyond simple data corruption or unauthorized access, as it enables attackers to potentially hijack user sessions, steal sensitive information, or redirect users to malicious websites. When exploited, the XSS vulnerability could allow threat actors to execute arbitrary code in victims' browsers, potentially leading to session hijacking, credential theft, or the deployment of additional malware. The attack surface is particularly concerning because scrapbook applications typically handle personal user data, making the potential for data exfiltration or identity theft significant. Users who visit pages containing the injected malicious content would unknowingly execute the attacker's code, creating a persistent threat that could affect multiple users depending on how the application's content is shared or displayed.
Mitigation strategies for this vulnerability must address both the immediate code-level fixes and broader application security practices. The primary solution involves implementing robust input validation and output encoding mechanisms throughout the application, particularly in the singlepage.php component where the vulnerability occurs. This includes sanitizing all user input before processing or storing it, and properly escaping output when rendering user-supplied content back to browsers. Security measures should also incorporate the use of Content Security Policy headers to limit the sources from which scripts can be loaded, as well as implementing proper HTTPOnly flags for session cookies to prevent JavaScript-based session theft. Organizations should also consider implementing web application firewalls to detect and block suspicious input patterns, and regularly conduct security testing including dynamic application security testing to identify similar vulnerabilities. The remediation process aligns with ATT&CK framework technique T1566, which covers social engineering through malicious web content, and emphasizes the importance of defensive measures at the application layer to prevent exploitation of such client-side vulnerabilities.