CVE-2024-44777 is a reflected cross-site scripting (XSS) vulnerability identified in the tag parameter of the index page in vTiger CRM version 7.4.0. Reflected XSS occurs when user-supplied input is immediately returned by a web application without proper sanitization or encoding, allowing attackers to inject malicious JavaScript code. In this case, the vulnerability resides in the tag parameter, which is processed and reflected back in the page content. When a user visits a specially crafted URL containing malicious payloads in the tag parameter, the injected script executes within the victim’s browser context. This can lead to session hijacking, unauthorized actions, or redirection to malicious sites. The vulnerability does not require prior authentication, increasing its risk profile, but does require user interaction such as clicking a malicious link. The CVSS 3.1 score of 7.4 (High) is derived from the network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), scope changed (S:C), no confidentiality impact (C:N), high integrity impact (I:H), and no availability impact (A:N). No patches or official fixes have been published yet, and no known exploits are reported in the wild. The vulnerability is classified under CWE-79, which covers improper neutralization of input during web page generation. Given the widespread use of vTiger CRM in customer relationship management, this vulnerability poses a significant risk to organizations relying on this software for sensitive business operations.

The primary impact of CVE-2024-44777 is on the integrity of data and user sessions within affected vTiger CRM installations. Successful exploitation allows attackers to execute arbitrary JavaScript code in the context of authenticated users, potentially enabling session hijacking, unauthorized data manipulation, or phishing attacks targeting CRM users. This can lead to unauthorized changes in customer data, leakage of sensitive business information, or disruption of CRM workflows. Although confidentiality impact is rated none, the integrity impact is high because attackers can perform actions on behalf of users. Availability is not affected. The vulnerability’s ease of exploitation (no authentication required, low complexity) combined with the critical role of CRM systems in business operations means that organizations worldwide could face significant operational and reputational damage if exploited. The lack of patches increases the window of exposure, making timely mitigation essential. Attackers could use this vulnerability as an initial foothold or pivot point within corporate networks, especially in environments where CRM access is linked to other internal systems.

1. Implement strict input validation and output encoding on the tag parameter to neutralize malicious scripts. 2. Deploy a Web Application Firewall (WAF) with rules specifically designed to detect and block reflected XSS payloads targeting the tag parameter in vTiger CRM. 3. Educate users to avoid clicking on suspicious or unsolicited links, especially those purporting to be from CRM notifications or external sources. 4. Monitor web server logs and application logs for unusual or suspicious requests containing script tags or encoded payloads in the tag parameter. 5. If possible, temporarily disable or restrict access to the vulnerable index page or the tag parameter until an official patch is released. 6. Apply Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in the browser context. 7. Stay updated with vendor advisories and apply official patches immediately upon release. 8. Conduct regular security assessments and penetration testing focused on input validation and XSS vulnerabilities in the CRM environment.