CVE-2024-22819 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability identified in FlyCms version 1.0. The vulnerability exists in the endpoint /system/email/email_templets_update, which is responsible for updating email templates within the CMS. CSRF vulnerabilities allow an attacker to trick an authenticated user into submitting a forged HTTP request, which the server processes with the user's privileges. In this case, an attacker could craft a malicious web page or link that, when visited by an authenticated FlyCms user, causes unauthorized changes to email templates without the user's consent or knowledge. The CVSS v3.1 base score of 8.8 reflects the critical nature of this vulnerability, with the vector indicating that the attack can be performed remotely (AV:N), requires no privileges (PR:N), but does require user interaction (UI:R). The impact is high across confidentiality, integrity, and availability (C:H/I:H/A:H), meaning that successful exploitation could lead to significant unauthorized data disclosure, modification of email content, and potential disruption of email functionality. No patches or vendor information are currently available, and there are no known exploits in the wild at this time. The vulnerability is classified under CWE-352, which is the standard identifier for CSRF issues. Given the lack of vendor or product details beyond FlyCms v1.0, it is likely a niche or less widely deployed CMS, but the vulnerability remains critical for any organization using this software.

For European organizations using FlyCms v1.0, this vulnerability poses a significant risk. Email templates often contain critical communication content, including transactional messages, notifications, or marketing emails. Unauthorized modification could lead to phishing campaigns originating from legitimate domains, spreading malware, or leaking sensitive information. The compromise of email template integrity can damage organizational reputation and trust, especially under strict European data protection regulations such as GDPR. Furthermore, attackers could disrupt email services, impacting business continuity. Since the vulnerability requires user interaction but no privileges, any authenticated user visiting a malicious site could trigger the exploit, increasing the risk of widespread impact within organizations. The absence of patches means organizations must rely on compensating controls until a fix is available.

European organizations should immediately implement strict web application firewall (WAF) rules to detect and block suspicious requests targeting the /system/email/email_templets_update endpoint. Employing anti-CSRF tokens in all state-changing requests is critical; if FlyCms does not support this natively, organizations should consider custom development or proxy solutions to enforce it. Restricting access to the email template update functionality to only highly trusted users and limiting session lifetimes can reduce exposure. Network segmentation and monitoring for unusual outbound email patterns can help detect exploitation attempts. User awareness training to avoid clicking on untrusted links while authenticated to FlyCms is also important. Until an official patch is released, organizations should consider disabling or restricting the vulnerable functionality if feasible. Regular backups of email templates should be maintained to enable quick restoration if tampering occurs.