CVE-2022-45769 is a cross-site scripting (XSS) vulnerability identified in ClicShopping_V3 version 3.402. This vulnerability allows an attacker to inject and execute arbitrary web scripts or HTML code through a crafted URL parameter. The vulnerability falls under CWE-79, which is a common weakness related to improper neutralization of input during web page generation, leading to XSS attacks. Specifically, the flaw enables attackers to manipulate URL parameters in a way that malicious JavaScript or HTML can be executed in the context of the victim's browser session. The CVSS v3.1 base score is 6.1, indicating a medium severity level. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) reveals that the attack can be performed remotely over the network without any privileges or authentication, but requires user interaction (clicking a crafted link). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impact affects confidentiality and integrity at a low level, with no impact on availability. No known exploits are currently reported in the wild, and no official patches or vendor project details are provided. The vulnerability is relevant to web applications running ClicShopping_V3, an e-commerce platform, which may be used by various organizations to manage online stores and customer interactions. The lack of vendor and product specifics limits detailed attribution, but the vulnerability is typical of web applications that do not properly sanitize or encode user-supplied input in URL parameters, leading to XSS risks.

For European organizations using ClicShopping_V3 or similar vulnerable e-commerce platforms, this XSS vulnerability poses risks primarily related to the confidentiality and integrity of user sessions and data. Attackers could exploit this flaw to execute malicious scripts in the browsers of customers or administrators, potentially stealing session cookies, login credentials, or other sensitive information. This could lead to account takeover, unauthorized transactions, or manipulation of displayed content, damaging trust and brand reputation. The vulnerability could also facilitate phishing attacks by injecting deceptive content into legitimate web pages. Although the vulnerability does not directly affect system availability, the indirect consequences such as data breaches or fraud could have significant operational and financial impacts. Given the medium severity and requirement for user interaction, the threat is moderate but should not be underestimated, especially for organizations handling sensitive customer data or financial transactions. The absence of known exploits suggests limited active targeting so far, but the ease of exploitation (no authentication required) means attackers could develop exploits rapidly if motivated.

Implement strict input validation and output encoding on all URL parameters to neutralize potentially malicious scripts. Use context-aware encoding (e.g., HTML entity encoding) to prevent script execution. Apply Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. Regularly update and patch the ClicShopping_V3 platform once official fixes become available. In the absence of vendor patches, consider applying community or third-party patches or workarounds. Conduct security code reviews and penetration testing focused on input handling and XSS vulnerabilities in the web application. Educate users and administrators about the risks of clicking on suspicious links and encourage the use of browser security features that can mitigate XSS risks. Implement web application firewalls (WAF) with rules designed to detect and block XSS attack patterns targeting URL parameters. Monitor web traffic and logs for unusual or suspicious URL parameter usage that could indicate exploitation attempts.