CVE-2024-40334 is a Cross-Site Request Forgery (CSRF) vulnerability identified in idccms version 1.35. The vulnerability exists in the administrative endpoint /admin/serverFile_deal.php with the parameter mudi=upFileDel and dataID=3, which handles file deletion operations. CSRF vulnerabilities allow attackers to induce authenticated users, typically administrators, to unknowingly execute unwanted actions on a web application where they are logged in. In this case, an attacker can craft a malicious request that, when visited by an authenticated admin, triggers deletion of files without their consent. The CVSS 3.1 score of 8.8 reflects a high severity due to the vulnerability's network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The impact on confidentiality, integrity, and availability is rated high (C:H/I:H/A:H), indicating that successful exploitation can lead to complete compromise of the system's data and functionality. No patches or fixes are currently linked, and no known exploits have been reported in the wild, but the vulnerability poses a significant risk given the widespread use of CMS platforms and the critical nature of administrative file operations. The vulnerability is classified under CWE-352, which covers CSRF attacks. Effective mitigation requires implementing anti-CSRF tokens, validating HTTP request origins, and restricting access to sensitive endpoints to trusted users only.

The impact of CVE-2024-40334 is substantial for organizations using idccms version 1.35. Successful exploitation can allow attackers to perform unauthorized file deletions on the server, potentially leading to data loss, service disruption, and compromise of system integrity. Since the vulnerability affects administrative functions, attackers could delete critical files, disrupt website availability, or manipulate content, undermining business operations and damaging reputation. The high CVSS score indicates that confidentiality, integrity, and availability are all at risk. Additionally, the lack of required privileges and the ability to exploit remotely over the network increase the threat surface. Organizations may face downtime, data breaches, or compliance violations if exploited. Although no known exploits are currently active, the vulnerability's characteristics make it a prime target for attackers seeking to disrupt or compromise CMS-based websites.

To mitigate CVE-2024-40334, organizations should implement the following specific measures: 1) Apply anti-CSRF tokens to all state-changing requests, especially those in administrative interfaces like /admin/serverFile_deal.php. 2) Enforce strict validation of the HTTP Referer and Origin headers to ensure requests originate from trusted sources. 3) Restrict access to administrative endpoints by IP whitelisting or VPN-only access to reduce exposure. 4) Implement multi-factor authentication for admin accounts to reduce risk from compromised credentials. 5) Monitor web server logs for unusual or repeated requests to the vulnerable endpoint that may indicate exploitation attempts. 6) If possible, update or patch idccms to a version that addresses this vulnerability once available. 7) Educate administrators about the risks of clicking on untrusted links while logged into the CMS. 8) Use Web Application Firewalls (WAFs) to detect and block suspicious CSRF attack patterns targeting the affected endpoint. These targeted mitigations go beyond generic advice by focusing on the specific vulnerable functionality and attack vectors.