CVE-2007-2804 in CandyPress Store
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in scripts/prodList.asp in CandyPress Store 3.5.2.14 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) brand and (2) Msg parameters.
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Analysis
by VulDB Data Team • 09/01/2017
The vulnerability identified as CVE-2007-2804 affects CandyPress Store version 3.5.2.14 and earlier, specifically targeting the scripts/prodList.asp component. This represents a classic cross-site scripting vulnerability that arises from inadequate input validation and sanitization within the web application's parameter handling mechanisms. The flaw manifests when user-supplied data is directly incorporated into web responses without proper encoding or filtering, creating an avenue for malicious actors to execute arbitrary scripts in the context of other users' browsers.
The technical implementation of this vulnerability involves two primary attack vectors through the brand and Msg parameters within the prodList.asp script. When these parameters receive unvalidated input from remote attackers, the application fails to properly sanitize or encode the data before rendering it in web pages. This allows attackers to inject malicious HTML content or JavaScript code that gets executed when other users view the affected pages. The vulnerability classifies under CWE-79 as a failure to sanitize user input, specifically manifesting as a reflected cross-site scripting flaw where the malicious payload is reflected back to users through the application's response.
Operationally, this vulnerability presents significant risks to both application integrity and user security. An attacker could exploit these XSS flaws to steal session cookies, perform unauthorized transactions, redirect users to malicious sites, or deface the web application interface. The reflected nature of the attack means that successful exploitation requires user interaction with a specially crafted URL containing the malicious payload, making it particularly dangerous in phishing campaigns or when combined with other attack vectors. The impact extends beyond simple data theft, potentially enabling privilege escalation attacks or serving as a stepping stone for more sophisticated exploitation techniques.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms. The primary defense involves sanitizing all user-supplied input through proper encoding before incorporating it into web responses, particularly for HTML, JavaScript, and URL contexts. Implementing Content Security Policy headers can provide additional protection against script execution, while regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities. Organizations should also consider implementing web application firewalls to detect and block malicious payloads, and maintain up-to-date security patches for all application components. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through spearphishing attachments and T1059.007 for command and control through scripting languages, highlighting the importance of comprehensive defensive measures across multiple attack surface areas.