CVE-2026-94171 in CURCY Plugin
Summary
by MITRE • 09/30/2026
Unauthenticated Cross Site Scripting (XSS) in CURCY <= 2.2.16 versions.
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Analysis
by VulDB Data Team • 09/30/2026
The vulnerability identified as an unauthenticated cross-site scripting flaw within the CURCY plugin, specifically affecting versions up to and including 2.2.16, represents a significant security risk for websites utilizing this e-commerce functionality. Cross-site scripting is categorized under CWE-79 in the Common Weakness Enumeration standard, which defines it as improper neutralization of input during web page generation. In this specific context, the flaw stems from insufficient validation and sanitization of user-supplied data before it is rendered within the browser environment. Because the vulnerability is unauthenticated, an attacker does not need to possess valid credentials or a legitimate session on the target website to exploit it. This characteristic drastically lowers the barrier for entry, allowing any internet user with basic knowledge of web technologies to initiate an attack against vulnerable instances.
The technical mechanism behind this exploitation typically involves injecting malicious JavaScript code into input fields that are reflected back in the HTTP response without proper encoding or escaping. When a victim visits a crafted URL containing the payload, their browser executes the script within the context of the trusted domain hosting CURCY. This allows the attacker to bypass same-origin policy restrictions and interact with the page as if they were an authenticated user. The operational impact is severe, potentially leading to session hijacking where attackers steal administrative cookies or authentication tokens. It also enables credential theft through fake login forms that mimic legitimate interfaces, defacement of the website content by altering DOM elements, and redirection of users to malicious sites hosting malware or phishing campaigns.
From a tactical perspective aligned with the MITRE ATT&CK framework, this vulnerability facilitates techniques such as Client-side Scripting Injection (T1059) and potentially Credential Access via Browser Harvesting if session tokens are successfully exfiltrated. The lack of authentication requirements means that automated scanning tools can easily identify and exploit these instances at scale across the internet. This poses a particular threat to e-commerce platforms where customer data, including payment information and personal details, is processed. An attacker could manipulate transaction flows or inject scripts into checkout pages to intercept sensitive financial data during transmission if secure transport layers are not strictly enforced alongside application-level fixes.
Mitigation strategies must prioritize immediate patching of the CURCY plugin to a version newer than 2.2.16 where these input validation issues have been addressed by the developers. In scenarios where updating is not immediately feasible, administrators should implement web application firewall rules that detect and block common XSS payloads in query parameters or POST data associated with the affected endpoints. Additionally, enforcing strict Content Security Policy headers can help mitigate the impact of successful injections by restricting the sources from which scripts are allowed to execute. Regular security audits and code reviews focusing on input handling practices are essential for preventing similar vulnerabilities in future updates or custom integrations involving this plugin.